Spring JMS Integration Gateway Example 12 minute read
A detailed step-by-step tutorial on how to connect to a JMS broker using a Spring Integration Gateway and Spring Boot.
引入了新åè¯åQšSupplierã€Function与Consumer。实际上˜q™å‡ 个类å¯è§†ä¸ºAdapteråQŒå¦‚果之å‰å·²¾l有å˜åœ¨çš„Service¾c»ï¼Œä¸”方法å为儿Uå„æ øP¼Œå¯ä»¥é‡æ–°åŒ…装æˆSupplierã€Function与ConsumeråQŒåƈ在固定的æ–ÒŽ³•å：apply/get/acceptä¸è°ƒç”¨Service的方法ã€?br />
Supplier
当在é…置文äšgä¸æ³¨å…¥æ¤¾cÕdž‹çš„BeanåQŒåƈ在spring.cloud.stream.function.definitionåŠ å…¥æ¤Beançš„å¿UŽÍ¼ŒSPRING CLOUD STREAMž®×ƒ¼šå¸®ä½ 生æˆä¸€ä¸ªOutput MessageChannelåQŒåƈ˜qžæŽ¥ä¸Šæ¤BeanåQŒåŽ¾låªéœ€è¦åœ¨BINDDINGä¸åŠ 入对应的Destination NameåQŒå³å¯å‘BROKERå‘消æ¯äº†ã€?br />Consumer
当在é…置文äšgä¸æ³¨å…¥æ¤¾cÕdž‹çš„BeanåQŒåƈ在spring.cloud.stream.function.definitionåŠ å…¥æ¤Beançš„å¿UŽÍ¼ŒSPRING CLOUD STREAMž®×ƒ¼šå¸®ä½ 生æˆä¸€ä¸ªInput MessageChannelåQŒåƈ˜qžæŽ¥ä¸Šæ¤BeanåQŒåŽ¾låªéœ€è¦åœ¨BINDDINGä¸åŠ 入对应的Destination NameåQŒå³å¯æ”¶åˆ°BROKER推é€å…³äºŽæ¤Destination的消æ¯äº†ã€?br />Function
当在é…置文äšgä¸æ³¨å…¥æ¤¾cÕdž‹çš„BeanåQŒåƈ在spring.cloud.stream.function.definitionåŠ å…¥æ¤Beançš„å¿UŽÍ¼ŒSPRING CLOUD STREAMž®×ƒ¼šå¸®ä½ 生æˆä¸€ä¸ªInputå’ŒOutput MessageChannelåQŒåƈ˜qžæŽ¥ä¸Šæ¤BeanåQŒåŽ¾låªéœ€è¦åœ¨BINDDINGä¸åˆ†åˆ«å¯¹Inputå’ŒOutput MessageChannelåŠ å…¥å¯¹åº”çš„Destination Name1/Name2åQŒå³å¯æ”¶åˆ°BROKER推é€å…³äºŽæ¤Destination的消æ¯ï¼Œä¹Ÿå¯ä»¥å‘BROKERå‘消æ¯äº†ã€?br />与SPRING INTEGRATIONçš„æ•´å?/h2>如果è¦å¯¹æ¶ˆæ¯˜q›è¡Œå¤æ‚处ç†åQŒå¦‚拆分消æ¯ã€èšåˆæ¶ˆæ¯ã€IF ELSE消毽{‰ï¼Œž®Þp¦å€ŸåŠ©SPRING INTEGRATION了ã€?br />
@Bean
public IntegrationFlow upperCaseFlow(LoanService loanService) {
return IntegrationFlows
//turn this IntegrationFlow as a gateway, here is a Function interface
//with loadCheckerFunction as bean name
.from(LoadCheckerFunction.class, gateway -> gateway.beanName("loadCheckerFunction"))
.handle(loanService, "check")
.logAndReply(LoggingHandler.Level.WARN);
}
public interface LoadCheckerFunction extends Function<Loan, Loan>{
}
IntegrationFlows.from(Class<?> serviceInterface)是å¯ä»¥å°†æœ¬IntegrationFlow包装æˆserviceInterface的实现类åQŒå¦‚果调用æ¤æŽ¥å£åQŒæœ€¾lˆä¼š˜q”回IntegrationFlow最åŽä¸€ä¸ªæ¥éª¤çš„实体åQŒå¦‚果这个serviceInterface是Functionçš„è¯åQŒåˆšå¥½å’ŒSPRING CLOUD STREAMå¯ÒŽŽ¥ä¸Šã€?br />
åŽç®‹åœ¨spring.cloud.stream.function.definitionåŠ å…¥æ¤Beançš„å¿U°loadCheckerFunctionåQŒSPRING CLOUD STREAMž®×ƒ¼šå¸®ä½ 生æˆä¸€ä¸ªInputå’ŒOutput MessageChannelåQŒåƈ˜qžæŽ¥ä¸Šæ¤BeanåQŒå†åœ¨BINDDINGä¸åˆ†åˆ«å¯¹Inputå’ŒOutput MessageChannelåŠ å…¥å¯¹åº”çš„Destination Name1/Name2åQŒå³å¯æ”¶åˆ°BROKER推é€å…³äºŽæ¤Destination的消æ¯ï¼Œä¹Ÿå¯ä»¥å‘BROKERå‘消æ¯ã€?br />
application.yaml
# This setting can increase or decrease the rate of message production (1000 = 1s)
# spring.cloud.stream.poller.fixed-delay=1000
# This setting can control which function method in our code will be triggered if there are multiple
# spring.cloud.function.definition=supplyLoan
# Give the autogenerated binding a friendlier name
spring:
application:
name: loan-check-rabbit
banner:
location: classpath:/banner-rabbit.txt
cloud:
stream:
function.definition: loadCheckerFunction
#BindingProperties
bindings:
loadCheckerFunction-in-0:
destination: queue.pretty.log.messages
binder: local_rabbit
loadCheckerFunction-out-0:
destination: queue.pretty.approved.messages
binder: local_rabbit
#BinderProperties
binders:
local_rabbit:
type: rabbit
environment:
spring:
rabbitmq:
host: 10.80.27.69
port: 5672
username: guest
password: guest
virtual-host: my-virtual-host
public IntegrationFlow upperCaseFlow(LoanService loanService) {
return IntegrationFlows
//turn this IntegrationFlow as a gateway, here is a Function interface
//with loadCheckerFunction as bean name
.from(LoadCheckerFunction.class, gateway -> gateway.beanName("loadCheckerFunction"))
.handle(loanService, "check")
.logAndReply(LoggingHandler.Level.WARN);
}
public interface LoadCheckerFunction extends Function<Loan, Loan>{
}
# spring.cloud.stream.poller.fixed-delay=1000
# This setting can control which function method in our code will be triggered if there are multiple
# spring.cloud.function.definition=supplyLoan
# Give the autogenerated binding a friendlier name
spring:
application:
name: loan-check-rabbit
banner:
location: classpath:/banner-rabbit.txt
cloud:
stream:
function.definition: loadCheckerFunction
#BindingProperties
bindings:
loadCheckerFunction-in-0:
destination: queue.pretty.log.messages
binder: local_rabbit
loadCheckerFunction-out-0:
destination: queue.pretty.approved.messages
binder: local_rabbit
#BinderProperties
binders:
local_rabbit:
type: rabbit
environment:
spring:
rabbitmq:
host: 10.80.27.69
port: 5672
username: guest
password: guest
virtual-host: my-virtual-host
Reference
https://spring.io/blog/2019/10/25/spring-cloud-stream-and-spring-integrationpaulwong 2021-11-10 15:10 å‘表评论
]]>package org.springframework.integration.stackoverflow.enricher;
import java.util.List;
import java.util.Map;
import java.util.function.Function;
import java.util.stream.Collectors;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import org.springframework.http.HttpMethod;
import org.springframework.integration.dsl.IntegrationFlow;
import org.springframework.integration.dsl.IntegrationFlows;
import org.springframework.integration.dsl.Transformers;
import org.springframework.integration.http.dsl.Http;
import org.springframework.web.client.RestTemplate;
@SpringBootApplication
public class SpringIntegrationEnricherApplication {
public static void main(String[] args) {
SpringApplication.run(SpringIntegrationEnricherApplication.class, args);
}
@Bean
public IntegrationFlow jsonEnricherFlow(RestTemplate restTemplate) {
return IntegrationFlows.from(Function.class)
.transform(Transformers.fromJson(Map.class))
.enrich((enricher) -> enricher
.<Map<String, ?>>requestPayload((message) ->
((List<?>) message.getPayload().get("attributeIds"))
.stream()
.map(Object::toString)
.collect(Collectors.joining(",")))
.requestSubFlow((subFlow) ->
subFlow.handle(
Http.outboundGateway("/attributes?id={ids}", restTemplate)
.httpMethod(HttpMethod.GET)
.expectedResponseType(Map.class)
.uriVariable("ids", "payload")))
.propertyExpression("attributes", "payload.attributes"))
.<Map<String, ?>, Map<String, ?>>transform(
(payload) -> {
payload.remove("attributeIds");
return payload;
})
.transform(Transformers.toJson())
.get();
}
}
import java.util.List;
import java.util.Map;
import java.util.function.Function;
import java.util.stream.Collectors;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import org.springframework.http.HttpMethod;
import org.springframework.integration.dsl.IntegrationFlow;
import org.springframework.integration.dsl.IntegrationFlows;
import org.springframework.integration.dsl.Transformers;
import org.springframework.integration.http.dsl.Http;
import org.springframework.web.client.RestTemplate;
@SpringBootApplication
public class SpringIntegrationEnricherApplication {
public static void main(String[] args) {
SpringApplication.run(SpringIntegrationEnricherApplication.class, args);
}
@Bean
public IntegrationFlow jsonEnricherFlow(RestTemplate restTemplate) {
return IntegrationFlows.from(Function.class)
.transform(Transformers.fromJson(Map.class))
.enrich((enricher) -> enricher
.<Map<String, ?>>requestPayload((message) ->
((List<?>) message.getPayload().get("attributeIds"))
.stream()
.map(Object::toString)
.collect(Collectors.joining(",")))
.requestSubFlow((subFlow) ->
subFlow.handle(
Http.outboundGateway("/attributes?id={ids}", restTemplate)
.httpMethod(HttpMethod.GET)
.expectedResponseType(Map.class)
.uriVariable("ids", "payload")))
.propertyExpression("attributes", "payload.attributes"))
.<Map<String, ?>, Map<String, ?>>transform(
(payload) -> {
payload.remove("attributeIds");
return payload;
})
.transform(Transformers.toJson())
.get();
}
}
https://stackoverflow.com/questions/58205432/spring-integration-enrich-transform-message-using-rest-call
https://www.tabnine.com/web/assistant/code/rs/5c781b6ae70f87000197ab9f#L312
paulwong 2021-09-21 13:40 å‘表评论
]]>@SpringBootApplication
public class SpringIntegrationDslHttpRetryApplication {
@SuppressWarnings("unchecked")
public static void main(String[] args) {
ConfigurableApplicationContext applicationContext =
SpringApplication.run(SpringIntegrationDslHttpRetryApplication.class, args);
Function<Object, Object> function = applicationContext.getBean(Function.class);
function.apply("foo");
}
@Bean
public IntegrationFlow httpRetryFlow() {
return IntegrationFlows.from(Function.class)
.handle(Http.outboundGateway("http://localhost:11111")
.httpMethod(HttpMethod.GET)
.expectedResponseType(String.class),
e -> e.advice(retryAdvice()))
.get();
}
@Bean
public RequestHandlerRetryAdvice retryAdvice() {
return new RequestHandlerRetryAdvice();
}
}
public class SpringIntegrationDslHttpRetryApplication {
@SuppressWarnings("unchecked")
public static void main(String[] args) {
ConfigurableApplicationContext applicationContext =
SpringApplication.run(SpringIntegrationDslHttpRetryApplication.class, args);
Function<Object, Object> function = applicationContext.getBean(Function.class);
function.apply("foo");
}
@Bean
public IntegrationFlow httpRetryFlow() {
return IntegrationFlows.from(Function.class)
.handle(Http.outboundGateway("http://localhost:11111")
.httpMethod(HttpMethod.GET)
.expectedResponseType(String.class),
e -> e.advice(retryAdvice()))
.get();
}
@Bean
public RequestHandlerRetryAdvice retryAdvice() {
return new RequestHandlerRetryAdvice();
}
}
#打å°æ—¥å¿—
logging.level.org.springframework.retry=debug
logging.level.org.springframework.retry=debug
Reference:
https://docs.spring.io/spring-integration/reference/html/handler-advice.html#retry-advice
https://stackoverflow.com/questions/49784360/configure-error-handling-and-retry-for-http-outboundgateway-spring-dsl
https://stackoverflow.com/questions/50262862/requesthandlerretryadvice-with-httprequestexecutingmessagehandler-not-working
https://stackoverflow.com/questions/63689856/spring-integration-http-outbound-gateway-retry-based-on-reply-content
https://blog.csdn.net/cunfen8879/article/details/112552420
paulwong 2021-08-23 13:01 å‘表评论
]]>JSR-303 Bean Validation则æ供了˜q™æ ·çš„便æ—÷€?br />
åªè¦åœ¨JAVA BEANä¸éœ€è¦éªŒè¯çš„å—æ®µåŠ @NotNull˜q™ç§æ ‡ç¾åQŒç„¶åŽåœ¨SERVISEä¸çš„输入å‚æ•°ä¸åŠ @Validæ ‡ç¾åQŒåˆ™ž®±æ¿€‹z»éªŒè¯æµ½E‹ã€?br />也å¯ä»¥ç¼–½E‹çš„æ–¹å¼è‡ªå·±éªŒè¯åQ?br />
自定义验è¯è§„åˆ?br />å¯ç”¨æ ‡ç¾æ¥åšåQŒä»¥ä¸‹äؓ验è¯æ‰‹æœºåïLš„规则åQ?br />
如果比较å¤æ‚的验è¯è§„则，则å‚è§ï¼š
https://reflectoring.io/bean-validation-with-spring-boot/#implementing-a-custom-validator
How to use Java Bean Validation in Spring Boot
https://nullbeans.com/how-to-use-java-bean-validation-in-spring-boot/
Complete Guide to Validation With Spring Boot
https://reflectoring.io/bean-validation-with-spring-boot/
Spring JMS Validate Messages using JSR-303 Bean Validation
https://memorynotfound.com/spring-jms-validate-messages-jsr-303-bean-validation/
Spring REST Validation Example
https://mkyong.com/spring-boot/spring-rest-validation-example/
Spring Boot æ•´åˆ Bean Validation æ ¡éªŒæ•°æ®
https://blog.csdn.net/wangzhihao1994/article/details/108403732
åªè¦åœ¨JAVA BEANä¸éœ€è¦éªŒè¯çš„å—æ®µåŠ @NotNull˜q™ç§æ ‡ç¾åQŒç„¶åŽåœ¨SERVISEä¸çš„输入å‚æ•°ä¸åŠ @Validæ ‡ç¾åQŒåˆ™ž®±æ¿€‹z»éªŒè¯æµ½E‹ã€?br />也å¯ä»¥ç¼–½E‹çš„æ–¹å¼è‡ªå·±éªŒè¯åQ?br />
@MessageEndpoint
//@Validated
public class MqMessageCcdValidator {
private static final Logger LOGGER = LoggerFactory.getLogger(MqMessageCcdValidator.class);
@Autowired
private Validator validator;
@ServiceActivator
public MqMessage<CcdRequest> validate(/* @Valid */ Message<MqMessage<CcdRequest>> requestMessage) {
Set<ConstraintViolation<MqMessage<CcdRequest>>> set = validator.validate(requestMessage.getPayload());
if(CollectionUtils.isNotEmpty(set)) {
CompositeException compositeException = new CompositeException();
set.forEach(
constraintViolation -> {
LOGGER.info("{}", constraintViolation);
ReqInfoValidationException exception =
new ReqInfoValidationException(constraintViolation.getMessage());
compositeException.addException(exception);
}
);
throw new MessageHandlingException(requestMessage, compositeException);
}
return requestMessage.getPayload();
}
}
//@Validated
public class MqMessageCcdValidator {
private static final Logger LOGGER = LoggerFactory.getLogger(MqMessageCcdValidator.class);
@Autowired
private Validator validator;
@ServiceActivator
public MqMessage<CcdRequest> validate(/* @Valid */ Message<MqMessage<CcdRequest>> requestMessage) {
Set<ConstraintViolation<MqMessage<CcdRequest>>> set = validator.validate(requestMessage.getPayload());
if(CollectionUtils.isNotEmpty(set)) {
CompositeException compositeException = new CompositeException();
set.forEach(
constraintViolation -> {
LOGGER.info("{}", constraintViolation);
ReqInfoValidationException exception =
new ReqInfoValidationException(constraintViolation.getMessage());
compositeException.addException(exception);
}
);
throw new MessageHandlingException(requestMessage, compositeException);
}
return requestMessage.getPayload();
}
}
自定义验è¯è§„åˆ?br />å¯ç”¨æ ‡ç¾æ¥åšåQŒä»¥ä¸‹äؓ验è¯æ‰‹æœºåïLš„规则åQ?br />
import static java.lang.annotation.RetentionPolicy.RUNTIME;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;
import javax.validation.Constraint;
import javax.validation.Payload;
import javax.validation.ReportAsSingleViolation;
import javax.validation.constraints.Pattern;
@Retention(RUNTIME)
@Target(value = { ElementType.FIELD, ElementType.PARAMETER, ElementType.ANNOTATION_TYPE })
@Constraint(validatedBy = {})
@ReportAsSingleViolation
@Pattern(regexp = "^1[3-9]\\d{9}$")
public @interface ChinaPhone {
String message() default "Invalid Chinese mobile No.";
Class<?>[] groups() default {};
Class<? extends Payload>[] payload() default {};
}
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;
import javax.validation.Constraint;
import javax.validation.Payload;
import javax.validation.ReportAsSingleViolation;
import javax.validation.constraints.Pattern;
@Retention(RUNTIME)
@Target(value = { ElementType.FIELD, ElementType.PARAMETER, ElementType.ANNOTATION_TYPE })
@Constraint(validatedBy = {})
@ReportAsSingleViolation
@Pattern(regexp = "^1[3-9]\\d{9}$")
public @interface ChinaPhone {
String message() default "Invalid Chinese mobile No.";
Class<?>[] groups() default {};
Class<? extends Payload>[] payload() default {};
}
如果比较å¤æ‚的验è¯è§„则，则å‚è§ï¼š
https://reflectoring.io/bean-validation-with-spring-boot/#implementing-a-custom-validator
How to use Java Bean Validation in Spring Boot
https://nullbeans.com/how-to-use-java-bean-validation-in-spring-boot/
Complete Guide to Validation With Spring Boot
https://reflectoring.io/bean-validation-with-spring-boot/
Spring JMS Validate Messages using JSR-303 Bean Validation
https://memorynotfound.com/spring-jms-validate-messages-jsr-303-bean-validation/
Spring REST Validation Example
https://mkyong.com/spring-boot/spring-rest-validation-example/
Spring Boot æ•´åˆ Bean Validation æ ¡éªŒæ•°æ®
https://blog.csdn.net/wangzhihao1994/article/details/108403732
paulwong 2021-01-28 10:35 å‘表评论
]]>- 食客下å•åQŒæœ‰é¥®å“ã€é£Ÿç‰©ã€ç”œç‚?br />
- ä¾åº”接å•åQŒä¼ é€ç»™åŽ¨æˆ¿
- 厨房分三个勹程处ç†åQŒå³é¥®å“ã€é£Ÿç‰©ã€ç”œç‚¹å‹¹ç¨‹
- ½{‰å¾…三个åæµ½E‹å¤„ç†å®ŒåQŒåˆòq¶æˆä¸€ä»½äº¤ä»?
- 如果厨房å‘现æŸé£Ÿç‰©æ¬ ¾~ºï¼Œä¼šé€šçŸ¥ä¾åº”åQŒå±•å¼€é”™è¯¯å¤„ç†åQŒå³é€šçŸ¥é£Ÿå®¢æ›´æ”¹é£Ÿç‰©åQŒå†äº¤ç»™åŽ¨æˆ¿
- ä¾åº”ž®†äº¤ä»˜å“ä¼ é€ç»™é£Ÿå®¢
对应SPRING INTEGRATION çš„SCATTERGATHER模å¼åQ?br />
@Bean
public IntegrationFlow scatterGatherAndExecutorChannelSubFlow(TaskExecutor taskExecutor) {
return f -> f
.scatterGather(
scatterer -> scatterer
.applySequence(true)
.recipientFlow(f1 -> f1.transform(p -> "Sub-flow#1"))
.recipientFlow(f2 -> f2
.channel(c -> c.executor(taskExecutor))
.transform(p -> {
throw new RuntimeException("Sub-flow#2");
})),
null,
s -> s.errorChannel("scatterGatherErrorChannel"));
}
@ServiceActivator(inputChannel = "scatterGatherErrorChannel")
public Message<?> processAsyncScatterError(MessagingException payload) {
return MessageBuilder.withPayload(payload.getCause().getCause())
.copyHeaders(payload.getFailedMessage().getHeaders())
.build();
}
public IntegrationFlow scatterGatherAndExecutorChannelSubFlow(TaskExecutor taskExecutor) {
return f -> f
.scatterGather(
scatterer -> scatterer
.applySequence(true)
.recipientFlow(f1 -> f1.transform(p -> "Sub-flow#1"))
.recipientFlow(f2 -> f2
.channel(c -> c.executor(taskExecutor))
.transform(p -> {
throw new RuntimeException("Sub-flow#2");
})),
null,
s -> s.errorChannel("scatterGatherErrorChannel"));
}
@ServiceActivator(inputChannel = "scatterGatherErrorChannel")
public Message<?> processAsyncScatterError(MessagingException payload) {
return MessageBuilder.withPayload(payload.getCause().getCause())
.copyHeaders(payload.getFailedMessage().getHeaders())
.build();
}
https://github.com/adnanmamajiwala/spring-integration-sample/tree/master/dsl-scatter-gather/src/main/java/com/si/dsl/scattergather
https://docs.spring.io/spring-integration/docs/5.1.x/reference/html/#scatter-gather
paulwong 2021-01-28 10:11 å‘表评论
]]>.headerFilter("Api-Key", "Content-Type", "X-Powered-By", "Content-Language", "Transfer-Encoding", "Cache-Control", "Keep-Alive", "Set-Cookie")
https://stackoverflow.com/questions/50608415/cwsia0112e-the-property-name-keep-alive-is-not-a-valid-java-identifier
paulwong 2020-10-20 14:56 å‘表评论
]]>@Bean
public IntegrationFlow provisionUserFlow() {
return
IntegrationFlows.from("input.channel")
.publishSubscribeChannel(Executors.newCachedThreadPool(),
s -> s.applySequence(true)
.subscribe(f -> f.enrichHeaders(e -> e.header(MessageHeaders.ERROR_CHANNEL, "errorChannel", true))
.handle(provisionerA, "provision")
.channel("aggregatorChannel")
)
.subscribe(f -> f.enrichHeaders(e -> e.header(MessageHeaders.ERROR_CHANNEL, "errorChannel", true))
.handle(provisionerB, "provision")
.channel("aggregatorChannel"))
)
.get();
}
@Bean
public IntegrationFlow aggregateFlow() {
return IntegrationFlows.from("aggregatorChannel")
.channel( aggregatorChannel)
.aggregate( a -> a.processor( collect, "aggregatingMethod"))
.get();
}
@Transformer( inputChannel = "errorChannel", outputChannel = "aggregatorChannel")
public Message<?> errorChannelHandler(ErrorMessage errorMessage) throws RuntimeException {
Message<?> failedMessage = ((MessagingException) errorMessage.getPayload()).getFailedMessage();
Exception exception = (Exception) errorMessage.getPayload();
return MessageBuilder.withPayload( exception.getMessage())
.copyHeadersIfAbsent( failedMessage.getHeaders() )
.build();
}
public IntegrationFlow provisionUserFlow() {
return
IntegrationFlows.from("input.channel")
.publishSubscribeChannel(Executors.newCachedThreadPool(),
s -> s.applySequence(true)
.subscribe(f -> f.enrichHeaders(e -> e.header(MessageHeaders.ERROR_CHANNEL, "errorChannel", true))
.handle(provisionerA, "provision")
.channel("aggregatorChannel")
)
.subscribe(f -> f.enrichHeaders(e -> e.header(MessageHeaders.ERROR_CHANNEL, "errorChannel", true))
.handle(provisionerB, "provision")
.channel("aggregatorChannel"))
)
.get();
}
@Bean
public IntegrationFlow aggregateFlow() {
return IntegrationFlows.from("aggregatorChannel")
.channel( aggregatorChannel)
.aggregate( a -> a.processor( collect, "aggregatingMethod"))
.get();
}
@Transformer( inputChannel = "errorChannel", outputChannel = "aggregatorChannel")
public Message<?> errorChannelHandler(ErrorMessage errorMessage) throws RuntimeException {
Message<?> failedMessage = ((MessagingException) errorMessage.getPayload()).getFailedMessage();
Exception exception = (Exception) errorMessage.getPayload();
return MessageBuilder.withPayload( exception.getMessage())
.copyHeadersIfAbsent( failedMessage.getHeaders() )
.build();
}
https://stackoverflow.com/q/46495127/11790720
paulwong 2020-10-15 19:21 å‘表评论
]]>@Bean
public IntegrationFlow parallelSplitRouteAggregateFlow() {
return IntegrationFlows
.from(Http.inboundGateway("/trigger"))
.handle((p, h) -> Arrays.asList(1, 2, 3))
.split()
.channel(MessageChannels.executor(Executors.newCachedThreadPool()))
.<Integer, Boolean>route(o -> o % 2 == 0, m -> m
.subFlowMapping(true, sf -> sf.gateway(oddFlow()))
.subFlowMapping(false, sf -> sf.gateway(evenFlow())))
.aggregate()
.get();
}
@Bean
public IntegrationFlow oddFlow() {
return flow -> flow.<Integer>handle((payload, headers) -> "odd");
}
@Bean
public IntegrationFlow evenFlow() {
return flow -> flow.<Integer>handle((payload, headers) -> "even");
}
public IntegrationFlow parallelSplitRouteAggregateFlow() {
return IntegrationFlows
.from(Http.inboundGateway("/trigger"))
.handle((p, h) -> Arrays.asList(1, 2, 3))
.split()
.channel(MessageChannels.executor(Executors.newCachedThreadPool()))
.<Integer, Boolean>route(o -> o % 2 == 0, m -> m
.subFlowMapping(true, sf -> sf.gateway(oddFlow()))
.subFlowMapping(false, sf -> sf.gateway(evenFlow())))
.aggregate()
.get();
}
@Bean
public IntegrationFlow oddFlow() {
return flow -> flow.<Integer>handle((payload, headers) -> "odd");
}
@Bean
public IntegrationFlow evenFlow() {
return flow -> flow.<Integer>handle((payload, headers) -> "even");
}
https://stackoverflow.com/questions/50121384/spring-integration-parallel-split-route-aggregate-flow-fails-due-to-one-way-mess
paulwong 2020-10-15 11:29 å‘表评论
]]>package com.jwebs.learn.errorhandling;
import java.util.Random;
import javax.jms.ConnectionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.integration.annotation.IntegrationComponentScan;
import org.springframework.integration.channel.PublishSubscribeChannel;
import org.springframework.integration.core.MessageSource;
import org.springframework.integration.dsl.IntegrationFlow;
import org.springframework.integration.dsl.IntegrationFlows;
import org.springframework.integration.dsl.core.Pollers;
import org.springframework.integration.dsl.jms.Jms;
import org.springframework.integration.support.MessageBuilder;
import org.springframework.messaging.MessagingException;
/**
* Show how to handle error in spring integration flow.
* Please note, errorChannel in spring integration only applicable to
* error thrown in asynch component.
*
* @author zakyalvan
*/
@SpringBootApplication
@IntegrationComponentScan
public class ErrorHandlingApplication {
public static void main(String[] args) throws Exception {
ConfigurableApplicationContext applicationContext = new SpringApplicationBuilder(ErrorHandlingApplication.class)
.web(false)
.run(args);
Runtime.getRuntime().addShutdownHook(new Thread(() -> applicationContext.close()));
System.out.println("Pres enter key to exit
");
System.in.read();
System.exit(0);
}
@Autowired
private ConnectionFactory connectionFactory;
@Bean
public MessageSource<Integer> randomIntegerMessageSource() {
return () -> MessageBuilder.withPayload(new Random().nextInt()).build();
}
@Bean
public IntegrationFlow withErrorFlow() {
return IntegrationFlows.from(randomIntegerMessageSource(), spec -> spec.poller(Pollers.fixedDelay(1000)))
.handle(Jms.outboundGateway(connectionFactory)
.requestDestination("processor.input")
.replyContainer(spec -> spec.sessionTransacted(true)))
.get();
}
@Autowired
@Qualifier("errorChannel")
private PublishSubscribeChannel errorChannel;
@Bean
public IntegrationFlow errorHandlingFlow() {
return IntegrationFlows.from(errorChannel)
.handle(message -> System.out.println("@@@@@@@@@@@@@@@@@@@@@" + ((MessagingException) message.getPayload()).getFailedMessage().getPayload()))
.get();
}
}
import java.util.Random;
import javax.jms.ConnectionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.integration.annotation.IntegrationComponentScan;
import org.springframework.integration.channel.PublishSubscribeChannel;
import org.springframework.integration.core.MessageSource;
import org.springframework.integration.dsl.IntegrationFlow;
import org.springframework.integration.dsl.IntegrationFlows;
import org.springframework.integration.dsl.core.Pollers;
import org.springframework.integration.dsl.jms.Jms;
import org.springframework.integration.support.MessageBuilder;
import org.springframework.messaging.MessagingException;
/**
* Show how to handle error in spring integration flow.
* Please note, errorChannel in spring integration only applicable to
* error thrown in asynch component.
*
* @author zakyalvan
*/
@SpringBootApplication
@IntegrationComponentScan
public class ErrorHandlingApplication {
public static void main(String[] args) throws Exception {
ConfigurableApplicationContext applicationContext = new SpringApplicationBuilder(ErrorHandlingApplication.class)
.web(false)
.run(args);
Runtime.getRuntime().addShutdownHook(new Thread(() -> applicationContext.close()));
System.out.println("Pres enter key to exit
");System.in.read();
System.exit(0);
}
@Autowired
private ConnectionFactory connectionFactory;
@Bean
public MessageSource<Integer> randomIntegerMessageSource() {
return () -> MessageBuilder.withPayload(new Random().nextInt()).build();
}
@Bean
public IntegrationFlow withErrorFlow() {
return IntegrationFlows.from(randomIntegerMessageSource(), spec -> spec.poller(Pollers.fixedDelay(1000)))
.handle(Jms.outboundGateway(connectionFactory)
.requestDestination("processor.input")
.replyContainer(spec -> spec.sessionTransacted(true)))
.get();
}
@Autowired
@Qualifier("errorChannel")
private PublishSubscribeChannel errorChannel;
@Bean
public IntegrationFlow errorHandlingFlow() {
return IntegrationFlows.from(errorChannel)
.handle(message -> System.out.println("@@@@@@@@@@@@@@@@@@@@@" + ((MessagingException) message.getPayload()).getFailedMessage().getPayload()))
.get();
}
}
paulwong 2020-01-10 15:32 å‘表评论
]]>- idempotent receiver
下题q™ä¸ªæ–ÒŽ¡ˆåQŒIDçš„å˜å‚¨å’Œåˆ¤æ–是å¦é‡å¤æ¶ˆæ¯éƒ½åœ¨ä¸€ä¸ªINTERCEPTORä¸æžå®šã€?br /> https://stackoverflow.com/questions/50401460/spring-integration-dsl-configure-idempotent-receiver-to-identify-duplicates
https://www.javacodegeeks.com/2015/09/monitoring-and-management.html
claim-check
ž®†MESSAGEçš„PAYLOADå˜åœ¨STOREä¸ï¼Œ˜q”回一个IDåQŒè¿™ä¸ªIDå³claim-checkåQŒå¦‚果需è¦å–MESSAGEçš„DETAIlæ—Óž¼Œå¯ä»ŽSTOREä¸å–出MESSAGEã€?br />https://github.com/spring-projects/spring-integration/blob/master/src/reference/asciidoc/claim-check.adoc
paulwong 2019-10-25 11:03 å‘表评论
]]>Introduction to Enterprise Application Integration
In our first lesson, you will get introduced to the concepts of Enterprise Application Integration. You will learn about the and Enterprise integration patterns that can be applied to simplify integration between different platforms and the Integration strategies that can be followed for this purpose. Finally, we will discuss how and why to implement a Message driven architecture and how to achieve both Synchronous and asynchronous communication among nodes.
Spring Integration Fundamentals
In this lesson, you will get to understand how Spring Integration works under the hood. The core concepts of Spring Integration messaging system (like message channels and endpoints) will be introduced. Additionally, the components that build the framework will be discussed, including the channel adapters, transformers, filters, routers etc. Finally, the two distinct methods of communication (synchronous and asynchronous) are explained and the lesson ends with a discussion on error handling.
Spring Integration and Web Services
In this lesson, we will focus on the integration with external web services. Spring Integration comes with the necessary functionality (adapters, channels etc.) to support web services out of the box. A full example is built from scratch in order to better understand the topic.
Enterprise Messaging
In this lesson, we will focus on integrating our application with JMS messaging. For this purpose, we will use Active MQ, which will be our broker. We will show examples of sending and receiving JMS messages by using the Spring Integration JMS channel adapters. Following these examples, we will see some ways of customizing these invocations by configuring message conversion and destination resolution.
Spring Integration Full Example
In this lesson, we will wrap everything up by providing a complete application that uses several of the components provided by Spring Integration in order to provide a service to its users. We will discuss the system architecture, the actual implementation and the relevant error handling.
Monitoring and Management
In this lesson, we will examine different mechanisms of monitoring or gathering more information about what is going on within the messaging system. Some of these mechanisms consist of managing or monitoring the application through MBeans, which are part of the JMX specification. Another mechanism discussed in this chapter is how we will implement the EIP idempotent receiver pattern using a metadata store. Finally, the last mechanism described is the control bus. This will let us send messages that will invoke operations on components in the application context.
paulwong 2019-10-25 09:45 å‘表评论
]]>paulwong 2019-10-23 11:55 å‘表评论
]]>Spring Integration ä¸æ–‡æ‰‹å†Œ (2)
paulwong 2019-10-11 10:28 å‘表评论
]]>SPRING INTEGRATION是实çŽîCº†EIP模å¼çš„一¿U框æžÓž¼Œå³ä‹É用CHANNELå’ŒJMS-INBOUND-ADAPTERã€JMS-OUTBOUND-ADAPTERåQŒå®Œå…¨è„±¼›ÖMº†JmsTemplateçš„APIã€?br />
如果需è¦å®žçŽ°è¿™¿U场景：从BROKERå–一æ¡æ¶ˆæ¯ï¼Œå¤„ç†æ¶ˆæ¯åQŒä¸”处ç†é€”ä¸ä¸è¦å†ä»ŽBROKERå†å–消æ¯åQŒå¤„ç†å®ŒåŽå†å–消æ¯ï¼Œå†å¤„ç†ã€?br />
˜q™æ ·è¦æ±‚手动开始和åœæ¢JMS LISTENERåQŒå³æ‰‹åŠ¨å¼€å§‹å’Œåœæ¢JMS-INBOUND-ADAPTERã€JMS-OUTBOUND-ADAPTERã€?br />
@Bean
@InboundChannelAdapter(value = "loaderResponseChannel")
public MessageSource loaderResponseSource() throws Exception {
return Jms
.inboundAdapter(oracleConnectionFactory())
.configureJmsTemplate(
t -> t.deliveryPersistent(true)
.jmsMessageConverter(jacksonJmsMessageConverter())
).destination(jmsInbound).get();
}
@InboundChannelAdapter(value = "loaderResponseChannel")
public MessageSource loaderResponseSource() throws Exception {
return Jms
.inboundAdapter(oracleConnectionFactory())
.configureJmsTemplate(
t -> t.deliveryPersistent(true)
.jmsMessageConverter(jacksonJmsMessageConverter())
).destination(jmsInbound).get();
}
当ä‹É用@InboundChannelAdapteræ—Óž¼Œä¼šè‡ªåŠ¨æ³¨å†Œä¸€ä¸ªSourcePollingChannelAdapter åQŒä½†˜q™ä¸ªåå—比较长：configrationName.loaderResponseSource.inboundChannelAdapterã€?br />
呼嫘q™ä¸ªå®žä¾‹çš„start()å’Œstop()æ–ÒŽ³•å›_¯ã€?br />
@Bean
public IntegrationFlow controlBusFlow() {
return IntegrationFlows.from("controlBus")
.controlBus()
.get();
}
Message operation = MessageBuilder.withPayload("@configrationName.loaderResponseSource.inboundChannelAdapter.start()").build();
operationChannel.send(operation)
public IntegrationFlow controlBusFlow() {
return IntegrationFlows.from("controlBus")
.controlBus()
.get();
}
Message operation = MessageBuilder.withPayload("@configrationName.loaderResponseSource.inboundChannelAdapter.start()").build();
operationChannel.send(operation)
https://stackoverflow.com/questions/45632469/shutdown-spring-integration-with-jms-inboundadapter
https://docs.spring.io/spring-integration/docs/5.0.7.RELEASE/reference/html/system-management-chapter.html#control-bus
https://github.com/spring-projects/spring-integration-java-dsl/blob/master/src/test/java/org/springframework/integration/dsl/test/jms/JmsTests.java
https://stackoverflow.com/questions/50428552/how-to-stop-or-suspend-polling-after-batch-job-fail
paulwong 2019-10-09 17:16 å‘表评论
]]>Enterprise integration is too complex to be solved with a simple 'cookbook' approach. Instead, patterns can provide guidance by documenting the kind of experience that usually lives only in architects' heads: they are accepted solutions to recurring problems within a given context. Patterns are abstract enough to apply to most integration technologies, but specific enough to provide hands-on guidance to designers and architects. Patterns also provide a vocabulary for developers to efficiently describe their solution.
Patterns are not 'invented'; they are harvested from repeated use in practice. If you have built integration solutions, it is likely that you have used some of these patterns, maybe in slight variations and maybe calling them by a different name. The purpose of this site is not to "invent" new approaches, but to present a coherent collection of relevant and proven patterns, which in total form an integration pattern language.
Despite the 700+ pages, our book covers only a fraction of patterns (and the problems to be solved) in the integration space. The current patterns focus on Messaging, which forms the basis of most other integration patterns. We have started to harvest more patterns but are realizing (once again) how much work documenting these patterns really is. So please stay tuned.
Messaging Patterns
We have documented 65 messaging patterns, organized as follows:
https://www.enterpriseintegrationpatterns.com/patterns/messaging/index.html
paulwong 2019-07-18 14:11 å‘表评论
]]>Spring JMS Artemis Example 6 minute read
A detailed step-by-step tutorial on how to connect to Apache ActiveMQ Artemis using Spring JMS and Spring Boot.
Spring JMS Topic Example 5 minute read
A detailed step-by-step tutorial on how to publish/subscribe to a JMS topic using Spring JMS and Spring Boot.
Spring JMS Integration Example12 minute read
A detailed step-by-step tutorial on how to connect to an ActiveMQ JMS broker using Spring Integration and Spring Boot.
Spring JMS Listener Example 7 minute read
A detailed step-by-step tutorial on how a Spring JMS listener works in combination with Spring Boot.
Spring JMS JmsTemplate Example 7 minute read
A detailed step-by-step tutorial on how to use JmsTemplate in combination with Spring JMS and Spring Boot.
Spring JMS Message Selector Example 5 minute read
A detailed step-by-step tutorial on how to implement a message selector using Spring JMS and Spring Boot.
Spring JMS Message Converter Example5 minute read
A detailed step-by-step tutorial on how to implement a message converter using Spring JMS and Spring Boot.
Spring Batch Admin Example 11 minute read
A detailed step-by-step tutorial on how to use a Spring Boot admin UI to manage Spring Batch jobs.
Spring Batch Tasklet Example 7 minute read
A detailed step-by-step tutorial on how to implement a Spring Batch Tasklet using Spring Boot.
Spring Batch Example 11 minute read
A detailed step-by-step tutorial on how to implement a Hello World Spring Batch job using Spring Boot.
paulwong 2019-07-18 13:21 å‘表评论
]]>- Everyone starting the new Spring projects based on Java Config uses that
- SI Java DSL enables you to use new powerfull Java 8 features like Lambdas
- You can build your flow using the Builder pattern based on IntegrationFlowBuilder
Let's take a look on the samples howto use that based on ActiveMQ JMS.
https://bitbucket.org/tomask79/spring-integration-java-dsl/src/master/
paulwong 2019-07-18 13:16 å‘表评论
]]>https://dzone.com/articles/message-processing-spring
paulwong 2019-06-05 11:08 å‘表评论
]]>1.spring integration 's architecture
主è¦æ供两个功能åQ?/p>
在系¾lŸå†…æ供实现轻釾U§ã€äº‹ä»‰™©±åŠ¨äº¤äº’行为的框架
在系¾lŸé—´æ供一¿U基于适é…器的òq›_°åQŒä»¥æ”¯æŒç‰|´»çš„ç³»¾lŸé—´äº¤äº’
2.spring integration对于ä¼ä¸šé›†æˆæ¨¡å¼çš„支æŒ?/p>
2.1MessageåQšä¸€ä¸ªä¿¡æ¯çš„å•å…ƒåQŒé€šå¸¸æœ‰æ¶ˆæ¯å¤´åQˆheaderåQ‰å’Œæ¶ˆæ¯å†…容åQˆpayloadåQ‰ç»„æˆ?/p>
2.2Message channelåQšæ¶ˆæ¯å¤„ç†èŠ‚点之间的˜qžæŽ¥åQŒè´Ÿè´£å°†Messageä»Žç”Ÿäº§è€…ä¼ è¾“åˆ°æ¶ˆè´¹è€…ã€?/p>
æ ÒŽ®æ¶ˆè´¹è€…的多少åQŒå¯åˆ†äØ“point to pointå’Œpublish-subscribe两ç§
æ ÒŽ®æ¶ˆæ¯ä¼ 输方å¼çš„ä¸åŒï¼Œåˆ†äØ“åŒæ¥å’Œå¼‚æ¥ä¸¤¿U?/p>
2.3Message EndpointåQšæ¶ˆæ¯å¤„ç†èŠ‚点，消æ¯ä»ŽèŠ‚点进入通é“åQŒä¹Ÿæ˜¯ä»ŽèŠ‚点¼›Õd¼€é€šé“
å‡ ä¸ªå¸¸è§çš„Message EndPointåQ?/p>
CHANNEL ADAPTERåQŒç”¨äºŽè¿žæŽ¥è¯¥é€‚é…器的特点是å•å‘消æ¯æµçš„，è¦ä¹ˆæ˜¯æ¶ˆæ¯é€šè¿‡è¯¥é€‚é…器进入通é“åQŒè¦ä¹ˆæ˜¯æ¶ˆæ¯é€šè¿‡è¯¥é€‚é…器离开通é“
MESSAGING GATEWAYåQŒå¤„ç†çš„消毋¹å’ŒChannel Adapterä¸åŒåQŒä¸æ˜¯å•å‘çš„åQŒå³æœ‰è¿›å…¥è¯¥èŠ‚点的消æ¯ï¼Œä¹Ÿä¼šä»Žè¯¥èŠ‚点å‘出消æ¯ã€?br />
SERVICE ACTIVATORåQŒè¯¥èŠ‚点调用æœåŠ¡æ¥å¤„ç†è¾“入的消æ¯åQŒåƈž®†æœåŠ¡è¿”回的数æ®å‘é€åˆ°è¾“出通é“。在spring integrationä¸ï¼Œè°ƒç”¨çš„方法被é™å®šä¸ºæœ¬åœ°æ–¹æ³•è°ƒç”¨ã€?br />
ROUTERåQŒèµ\由器åQŒå°†è¾“入的消æ¯èµ\由到æŸä¸ªè¾“出通é“ä¸?/p>
SPLITTERåQŒå°†è¾“入的消æ¯æ‹†åˆ†æˆå消æ?br />
AGGREGATORåQŒå°†è¾“入的多个消æ¯åˆòq¶äؓ一个消æ?br />
3.观看书ä¸ä¾‹åhello-worldæ€è€?/p>
‹¹‹è¯•gatewayæ—Óž¼Œä¸‹é¢ä»£ç å‘通é“names内放入消æ¯worldåQ?/p>
然åŽservice-activator从names通é“ä¸èŽ·å¾—消æ¯worldåQŒè°ƒç”¨æ–¹æ³•sayHello˜q”回值到¾l™gatewayåQ?/p>
解释åQšgateway有一个serviceåQinterface的属性，˜q™ä¸ªå±žæ€§æŒ‡å‘一个interface。当我们用一个接å£å£°æ˜Žä¸€ä¸ªgatewayæ—Óž¼Œspring integration会自动帮我们生æˆè¯¥æŽ¥å£çš„代熾c»ï¼Œ˜q™æ ·å½“我们往gatewayå‘é€æ¶ˆæ¯æ—¶åQŒspring integration会通过代熾cÀLŠŠæ¶ˆæ¯è½¬å‘到defaultåQrequeståQchannelä¸åŽ»
作者：马国æ ?br /> 链接åQšhttps://www.jianshu.com/p/bf1643539f99
æ¥æºåQšç®€ä¹?br /> ½Ž€ä¹¦è‘—作æƒå½’作者所有，ä»ÖM½•å½¢å¼çš„è{载都误‚”¾pÖM½œè€…获得授æƒåƈ注明出处ã€?/div>
paulwong 2019-06-05 10:36 å‘表评论
]]>我这‹Æ¡ä‹É用的安装包是james 2.3.1。大家å¯ä»¥ä»Ž˜q™é‡Œä¸‹è²åˆ°http://james.apache.org/download.cgi
现在让我们开始我们激动äh心的james之旅。首先我们将james-binary-2.3.1.zip解压¾~©ä¸‹è½½åˆ°ä½ 的安装目录。我们å¯ä»¥æŠŠ˜q™ä¸ª˜q‡ç¨‹ç†è§£ä¸ºå®‰è£…çš„˜q‡ç¨‹ã€‚我在这里将它解压到c:\.òq¶ä¸”把它改å为james.˜q™æ ·æˆ‘们的jamesž®±å®‰è£…好了。目录äØ“C:\james。很½Ž€å•å§åQ?br />
准备知识 åQ?å¦ä¹ 一些必è¦çš„知识
在我使用james的时候让我感觉首先ç†è§£james的应用程åºç»“构是很é‡è¦çš„。å¦åˆ™ä½ 会在使用ä¸æ„Ÿåˆ°å¾ˆå›°æƒ‘ã€?br /> 它的应用½E‹åº¾l“构是这æ ïLš„åQ?br /> James
|_ _apps
|_ _bin
|_ _conf
|_ _ext
|_ _lib
|_ _logs
|_ _tools
我们é‡ç‚¹ä»‹ç»ä¸€ä¸‹ä¸¤ä¸ªæ–‡ä»¶å¤¹bin å’?apps.
bin目录ä¸çš„run.batå’Œrun.sh是Jamesçš„å¯åŠ¨ç¨‹åºã€‚åªè¦è®°ä½è¿™ä¸ªé‡è¦æ–‡ä»¶å°±å¯ä»¥ã€?br /> å¯åŠ¨ä¹‹åŽæŽ§åˆ¶å°æ˜¾½Cºå¦‚下：
Using PHOENIX_HOME: C:\james
Using PHOENIX_TMPDIR: C:\james\temp
Using JAVA_HOME: C:\j2sdk1.4.2_02
Phoenix 4.2
James Mail Server 2.3.1
Remote Manager Service started plain:4555
POP3 Service started plain:110
SMTP Service started plain:25
NNTP Service started plain:119
FetchMail Disabled
Apps 目录下有个jamesçš„å目录˜q™ä¸ªç›®å½•æ˜¯å®ƒçš„æ ¸å¿ƒã€?br /> james
|_ _SAR-INF
|_ _conf
|_ _logs
|_ _var
|_mail
|_address-error
|_error
|_indexes
|_outgoing
|_relay-denied
|_spam
|_spool
|_nntp
|_....
…
|_users
SAR-INF 下有一个config.xml是jamesä¸çš„æ ¸å¿ƒé…置文äšgã€?br /> Logs 包å«äº†ä¸Žjames有关的Log。调试全é 它了ã€?br /> Var 包å«äº†ä¸€äº›æ–‡ä»¶å¤¹é€šè¿‡å®ƒä»¬çš„åå—我们大概也能猜‹¹‹å‡ºå®ƒä»¬çš„用途。Mail主è¦ç”¨äºŽå˜å‚¨é‚®äšg。nntp主è¦ç”¨äºŽæ–°é—»æœåŠ¡å™¨ã€‚Users用于å˜å‚¨æ‰€æœ‰é‚®ä»¶æœåŠ¡å™¨çš„用戗÷€‚也ž®±æ˜¯é‚®äšg地å€å‰é¢çš„东东。如åQšpig@sina.comçš„pigž®±æ˜¯æ‰€è°“用用户ã€?br />
创å¾ç”¨æˆ·åQ?br /> 我们在James上å¾è‹¥å¹²ç”¨æˆ·åQŒç”¨æ¥æµ‹è¯•æ”¶å‘é‚®ä»¶ã€‚å½“ç„¶å¦‚æžœä½ ä¸ç”¨james本èín的用户也å¯ä»¥ã€‚James以telnet çš„æ–¹å¼æ供了接å£ç”¨æ¥æ·ÕdŠ 用户。下é¢æˆ‘æ¥æ¼”½CÞZ¸€ä¸‹ã€?br /> 首先使用telnetæ¥è¿žæŽ¥jamesçš„remote manager .
1.telnet localhost 4555 回èžR
2.然åŽè¾“å…¥½Ž¡ç†å‘˜ç”¨æˆ·å和密ç （user/pwd åQ?root/root 是默认设¾|®è¿™ä¸ªå¯ä»¥åœ¨config.xmlä¸ä¿®æ”¹ï¼‰
JAMES Remote Administration Tool 2.3.1
Please enter your login and password
Login id:
root
Password:
root
Welcome root. HELP for a list of commands
3.æ·ÕdŠ 用户
adduser kakaxi kakaxi
User kakaxi added
Adduser mingren mingren
User mingren added
4.查看æ·ÕdŠ 情况
listusers
Existing accounts 2
user: mingren
user: kakaxi
得到上é¢çš„ä¿¡æ¯è¯´æ˜Žæˆ‘们已¾læ·»åŠ æˆåŠŸã€?br />
å‘é€å™¨
˜q™ä¸ª¾cÖM¸»è¦ç”¨æ¥æµ‹è¯•æˆ‘们的邮äšgæœåŠ¡å™¨ï¼Œå¯ä»¥ä¸ç”¨ž®†å…¶æ‰“入包ä¸ã€?br /> java 代ç
package com.paul.jamesstudy;
import java.util.Date;
import java.util.Properties;
import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
public class Mail {
private String mailServer, From, To, mailSubject, MailContent;
private String username, password;
private Session mailSession;
private Properties prop;
private Message message;
// Authenticator auth;//认è¯
public Mail() {
// 讄¡½®é‚®äšg相关
username = "kakaxi";
password = "kakaxi";
mailServer = "localhost";
From = "kakaxi@localhost";
To = "mingren@localhost";
mailSubject = "Hello Scientist";
MailContent = "How are you today!";
}
public void send(){
EmailAuthenticator mailauth =
new EmailAuthenticator(username, password);
// 讄¡½®é‚®äšgæœåŠ¡å™?nbsp;
prop = System.getProperties();
prop.put("mail.smtp.auth", "true");
prop.put("mail.smtp.host", mailServer);
// 产生新的SessionæœåŠ¡
mailSession = mailSession.getDefaultInstance(prop,
(Authenticator) mailauth);
message = new MimeMessage(mailSession);
try {
message.setFrom(new InternetAddress(From)); // 讄¡½®å‘äšgäº?nbsp;
message.setRecipient(Message.RecipientType.TO,
new InternetAddress(To));// 讄¡½®æ”¶äšgäº?nbsp;
message.setSubject(mailSubject);// 讄¡½®ä¸»é¢˜
message.setContent(MailContent, "text/plain");// 讄¡½®å†…容
message.setSentDate(new Date());// 讄¡½®æ—¥æœŸ
Transport tran = mailSession.getTransport("smtp");
tran.connect(mailServer, username, password);
tran.send(message, message.getAllRecipients());
tran.close();
} catch (Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
Mail mail;
mail = new Mail();
System.out.println("sending");
mail.send();
System.out.println("finished!");
}
}
class EmailAuthenticator extends Authenticator {
private String m_username = null;
private String m_userpass = null;
void setUsername(String username) {
m_username = username;
}
void setUserpass(String userpass) {
m_userpass = userpass;
}
public EmailAuthenticator(String username, String userpass) {
super();
setUsername(username);
setUserpass(userpass);
}
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(m_username, m_userpass);
}
}
import java.util.Date;
import java.util.Properties;
import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
public class Mail {
private String mailServer, From, To, mailSubject, MailContent;
private String username, password;
private Session mailSession;
private Properties prop;
private Message message;
// Authenticator auth;//认è¯
public Mail() {
// 讄¡½®é‚®äšg相关
username = "kakaxi";
password = "kakaxi";
mailServer = "localhost";
From = "kakaxi@localhost";
To = "mingren@localhost";
mailSubject = "Hello Scientist";
MailContent = "How are you today!";
}
public void send(){
EmailAuthenticator mailauth =
new EmailAuthenticator(username, password);
// 讄¡½®é‚®äšgæœåŠ¡å™?nbsp;
prop = System.getProperties();
prop.put("mail.smtp.auth", "true");
prop.put("mail.smtp.host", mailServer);
// 产生新的SessionæœåŠ¡
mailSession = mailSession.getDefaultInstance(prop,
(Authenticator) mailauth);
message = new MimeMessage(mailSession);
try {
message.setFrom(new InternetAddress(From)); // 讄¡½®å‘äšgäº?nbsp;
message.setRecipient(Message.RecipientType.TO,
new InternetAddress(To));// 讄¡½®æ”¶äšgäº?nbsp;
message.setSubject(mailSubject);// 讄¡½®ä¸»é¢˜
message.setContent(MailContent, "text/plain");// 讄¡½®å†…容
message.setSentDate(new Date());// 讄¡½®æ—¥æœŸ
Transport tran = mailSession.getTransport("smtp");
tran.connect(mailServer, username, password);
tran.send(message, message.getAllRecipients());
tran.close();
} catch (Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
Mail mail;
mail = new Mail();
System.out.println("sending");
mail.send();
System.out.println("finished!");
}
}
class EmailAuthenticator extends Authenticator {
private String m_username = null;
private String m_userpass = null;
void setUsername(String username) {
m_username = username;
}
void setUserpass(String userpass) {
m_userpass = userpass;
}
public EmailAuthenticator(String username, String userpass) {
super();
setUsername(username);
setUserpass(userpass);
}
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(m_username, m_userpass);
}
}
paulwong 2012-12-16 13:14 å‘表评论
]]>paulwong 2012-10-21 17:23 å‘表评论
]]>paulwong 2012-10-16 00:11 å‘表评论
]]>paulwong 2012-06-11 10:07 å‘表评论
]]>ä¸ç”¨å®‰è£…æœåŠ¡å™¨ï¼Œå†…嵌在SPRING容器ä¸ï¼Œå¯¹å¤–支æŒå¤šç§æ ¼å¼çš„æ•°æ®ï¼Œå¤–部¾pÈ»Ÿå¦‚è¦å’ŒSPRING INTERGRATIONæ•´åˆåQŒä¸éœ€è¦å†˜q›è¡Œå¼€å?br />处熋¹ç¨‹ä¸€èˆ¬å°±æ˜¯ï¼ŒADAPTER去读å–外部数æ®ï¼Œè½¬æ¢åŽæ”¾åˆ°CHANNELä¸ï¼ŒENDPOINT处ç†CHANNELä¸çš„æ•°æ®åQŒå§”‹z„¡»™ä¸‹ä¸€ä¸ªCHANNELåQŒä¸‹ä¸€ä¸ªENDPOINT处ç†åQŒé€šè¿‡ADAPTER写到外部接å£ä¸ã€?br />
- ADAPTER
外部¾pÈ»Ÿä¸ŽCHANNEL之间的桥æ¢ï¼ŒèŽ·å–外部数殞®†å…¶æ”‘Öˆ°CHANNEL去，有FTPåQŒJMSåQŒæ–‡ä»¶ç³»¾lŸçš„ - CHANNEL里é¢æ”¾MESSAGE对象åQŒMESSAGE里é¢å¯ä»¥æ”¾è‡ªå®šä¹‰å¯¹è±¡åQŒä»¥æ供消费者ä‹Éç”?br />
- ENDPOINTCHANNEL的消费者，CHANNEL与ENDPOINT是一对一的关¾p»ï¼Œæ‰€ä»¥å¦‚果想在一个CHANNE下对应多个ENDPOINTåQŒæ˜¯åšä¸åˆ°çš„åQŒåªèƒ½å¢žåŠ CHANNEL
Service ActivatorsåQšä»ŽINPUT CHANNELä¸å–å‡ÞZ¸€ä¸ªå¯¹è±¡ä½œä¸ºå‚敎ͼŒè°ƒç”¨è®„¡½®çš„POJO的方法，ž®†ç»“果放到OUTPUT CHANNELä¸?br />TransformersåQšå¯¹CHANNELä¸çš„对象˜q›è¡Œ¾cÕdž‹è½¬æ¢
军_®š‹¹å‘çš„ENDPOINTåQšRoutersåQŒSPLITER - 例å
<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/integration"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:beans="http://www.springframework.org/schema/beans"
xmlns:stream="http://www.springframework.org/schema/integration/stream"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/integration
http://www.springframework.org/schema/integration/spring-integration.xsd
http://www.springframework.org/schema/integration/stream
http://www.springframework.org/schema/integration/stream/spring-integration-stream.xsd">
<gateway id="cafe" service-interface="org.springframework.integration.samples.cafe.Cafe"/>
<channel id="orders"/>
<!-- æ¤å¤„orders里é¢çš„对象是一个一个MessageåQŒè°ƒç”¨payload则å–到Order
调用items则得到OrderItem ListåQŒæ‹†åˆ†æˆOrderItem以一个äØ“å•ä½æ”‘Öˆ°
drinks�br /> -->
<splitter input-channel="orders" expression="payload.items" output-channel="drinks"/>
<channel id="drinks"/>
<!-- æ¤å¤„drinks里é¢çš„对象是一个一个OrderItemåQŒè°ƒç”¨iced则å–到布ž®”å€?br /> 如果是true则放到coldDrinksä¸ï¼Œå¦‚是false则放到hotDrinksä¸?br /> -->
<router input-channel="drinks" expression="payload.iced ? 'coldDrinks' : 'hotDrinks'"/>
<channel id="coldDrinks">
<queue capacity="10"/>
</channel>
<service-activator input-channel="coldDrinks" ref="barista" method="prepareColdDrink" output-channel="preparedDrinks"/>
<channel id="hotDrinks">
<queue capacity="10"/>
</channel>
<!-- ž®†è¾“入通é“ä¸çš„OrderItem转æˆDrink -->
<service-activator input-channel="hotDrinks" ref="barista" method="prepareHotDrink" output-channel="preparedDrinks"/>
<channel id="preparedDrinks"/>
<!-- ž®†é€šé“ä¸çš„Drink按一个Order˜q›è¡Œåˆåƈæˆä¸€ä¸ªList<Order>-->
<aggregator input-channel="preparedDrinks" method="prepareDelivery" output-channel="deliveries">
<beans:bean class="org.springframework.integration.samples.cafe.xml.Waiter"/>
</aggregator>
<stream:stdout-channel-adapter id="deliveries"/>
<beans:bean id="barista" class="org.springframework.integration.samples.cafe.xml.Barista"/>
<poller id="poller" default="true" fixed-delay="1000"/>
</beans:beans>
<beans:beans xmlns="http://www.springframework.org/schema/integration"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:beans="http://www.springframework.org/schema/beans"
xmlns:stream="http://www.springframework.org/schema/integration/stream"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/integration
http://www.springframework.org/schema/integration/spring-integration.xsd
http://www.springframework.org/schema/integration/stream
http://www.springframework.org/schema/integration/stream/spring-integration-stream.xsd">
<gateway id="cafe" service-interface="org.springframework.integration.samples.cafe.Cafe"/>
<channel id="orders"/>
<!-- æ¤å¤„orders里é¢çš„对象是一个一个MessageåQŒè°ƒç”¨payload则å–到Order
调用items则得到OrderItem ListåQŒæ‹†åˆ†æˆOrderItem以一个äØ“å•ä½æ”‘Öˆ°
drinks�br /> -->
<splitter input-channel="orders" expression="payload.items" output-channel="drinks"/>
<channel id="drinks"/>
<!-- æ¤å¤„drinks里é¢çš„对象是一个一个OrderItemåQŒè°ƒç”¨iced则å–到布ž®”å€?br /> 如果是true则放到coldDrinksä¸ï¼Œå¦‚是false则放到hotDrinksä¸?br /> -->
<router input-channel="drinks" expression="payload.iced ? 'coldDrinks' : 'hotDrinks'"/>
<channel id="coldDrinks">
<queue capacity="10"/>
</channel>
<service-activator input-channel="coldDrinks" ref="barista" method="prepareColdDrink" output-channel="preparedDrinks"/>
<channel id="hotDrinks">
<queue capacity="10"/>
</channel>
<!-- ž®†è¾“入通é“ä¸çš„OrderItem转æˆDrink -->
<service-activator input-channel="hotDrinks" ref="barista" method="prepareHotDrink" output-channel="preparedDrinks"/>
<channel id="preparedDrinks"/>
<!-- ž®†é€šé“ä¸çš„Drink按一个Order˜q›è¡Œåˆåƈæˆä¸€ä¸ªList<Order>-->
<aggregator input-channel="preparedDrinks" method="prepareDelivery" output-channel="deliveries">
<beans:bean class="org.springframework.integration.samples.cafe.xml.Waiter"/>
</aggregator>
<stream:stdout-channel-adapter id="deliveries"/>
<beans:bean id="barista" class="org.springframework.integration.samples.cafe.xml.Barista"/>
<poller id="poller" default="true" fixed-delay="1000"/>
</beans:beans>
paulwong 2012-06-11 10:04 å‘表评论
]]>