Spring2.5MVC應(yīng)用實(shí)例
首先在web.xml中配置spring相關(guān)servlet和listener。
<!-- Spring 服務(wù)層的配置文件 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml,classpath:dataAccessContext-jdbc.xml</param-value>
</context-param>
<!-- Spring 容器啟動監(jiān)聽器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- Spring MVC 的Servlet，它將加載WEB-INF/annomvc-servlet.xml 的
配置文件，以啟動Spring MVC模塊-->
<servlet>
<servlet-name>greatwall</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>0</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>greatwall</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
配置里面主要涉及三個xml配置文件，分別對應(yīng)的代碼如下：
applicationContext.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-2.5.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-2.5.xsd">
<context:annotation-config
/>
<context:component-scan
base-package="com.example" />
</beans>
dataAccessContext-jdbc.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-2.5.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-2.5.xsd">
<bean id="dataSource"
class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName"
value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost/greatwall"
/>
<property name="username"
value="root" />
<property name="password"
value="sa" />
</bean>
<!-- ibatis sqlMapClient
config -->
<bean id="sqlMapClient" class="org.springframework.orm.ibatis.SqlMapClientFactoryBean">
<property name="configLocation">
<value>classpath:sql\sql-map-config.xml</value>
</property>
<property name="dataSource">
<ref bean="dataSource"/>
</property>
</bean>
</beans>
greatwall-servlet.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-2.5.xsd">
<context:component-scan
base-package="com.example" />
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"
/>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:prefix="/app/" p:suffix=".jsp" />
</beans>
其中，dataAccessContext-jdbc.xml這個文件是為了ibatis需要的，如果你使用的hibernate或者jdbc的話，可以先將里面的bean全部去掉，保留一個空的beans節(jié)點(diǎn)既可。
實(shí)例的java類如下：
package com.example.controller;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.http.HttpServletResponse;
import net.sf.json.JSONObject;
import
org.springframework.beans.factory.annotation.Autowired;
import
org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import com.example.domain.Customer;
import com.example.exception.CustomerException;
import com.example.service.ICustomerService;
import com.example.util.ListRange;
@Controller
public class CustomerController {
@Autowired(required
= false)
@Qualifier("customerService")
private
ICustomerService customerService = null;
@RequestMapping("/listCustomer.do")
public void
list(HttpServletResponse response,int start,int limit) {
try {
ListRange<Customer>
listRange = new ListRange<Customer>();
listRange.setLimit(limit);
listRange.setStart(start);
customerService.queryRecords(listRange);
response.setContentType("text/javascript;charset=UTF-8");
try
{
PrintWriter
out = response.getWriter();
out.write(JSONObject.fromObject(listRange).toString());
}
catch (IOException e) {
}
}
catch (CustomerException e) {
e.printStackTrace();
}
}
@RequestMapping("/deleteCustomer.do")
public void
delete(HttpServletResponse response,String ids) {
ListRange<Customer>
result = new ListRange<Customer>();
result.setSuccess(true);
try {
customerService.delete(ids);
}
catch (CustomerException e) {
e.printStackTrace();
result.setSuccess(false);
}
response.setContentType("text/javascript;charset=UTF-8");
try {
PrintWriter
out = response.getWriter();
out.write(JSONObject.fromObject(result).toString());
}
catch (IOException e) {
}
}
@RequestMapping("/updateCustomer.do")
public void
update(HttpServletResponse response,Customer customer) {
System.out.println(customer);
ListRange<Customer>
result = new ListRange<Customer>();
result.setSuccess(true);
try {
customerService.update(customer);
}
catch (CustomerException e) {
e.printStackTrace();
}
response.setContentType("text/javascript;charset=UTF-8");
try {
PrintWriter
out = response.getWriter();
out.write(JSONObject.fromObject(result).toString());
}
catch (IOException e) {
}
}
@RequestMapping("/selectCustomer.do")
public void
select() {
}
@RequestMapping("/insertCustomer.do")
public void
insert(HttpServletResponse response,Customer customer) {
System.out.println(customer);
ListRange<Customer>
result = new ListRange<Customer>();
result.setSuccess(true);
try {
customerService.insert(customer);
}
catch (CustomerException e) {
e.printStackTrace();
}
response.setContentType("text/javascript;charset=UTF-8");
try {
PrintWriter
out = response.getWriter();
out.write(JSONObject.fromObject(result).toString());
}
catch (IOException e) {
}
}
}
Spring會自動的將http提交的參數(shù)對應(yīng)到javabean上，這里使用了一個ICustomerService的注入操作，還有一些javabean，可以直接去掉，保留一個最簡單的版本進(jìn)行測試。