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莫多 — Wed, 17 Jan 2007 10:24:00 GMT

xstream是个好东�ѝ��对于配�|�文件的��d��很方�ѝ��在mybog中我��q��C��。不�q�今天打��用yupoo的api来做相册。发现xstream对于xmlnode的attribute解析支持不是那么的好�?br />对于�q�种节点格式的非常的��?br />

<result>
    <page>1page>
    <pages>1pages>
    <perpage>100perpage>
    <total>19total>
    <photos>
        <photo>
            <id>ff8080810fc8ac78010fd3f158d40a52id>
            <owner>ff8080810f1a387b010f1a83d6530dfcowner>
            <title>Gmail-2title>
            <host>4host>
            <dir>20061230dir>
            <filename>231905_1463411198filename>
        photo>
    photos>
result>

��单的alias一下就可以��d��g��

File file = new File("src/test/java/com/jdkcn/test/result.xml");
BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream(file), "UTF-8"));
XStream stream = new XStream();
stream.alias("result", YupooResult.class);
stream.alias("photo",YupooPhoto.class);
YupooResult result = (YupooResult)stream.fromXML(reader);

可是Yupoo的api�q�回的xmlrpc的结果是�q�样�?br />

<result page="1" pages="1" perpage="100" total="19">
    <photos>
        <photo id="ff8080810fc8ac78010fd3f158d40a52"
            owner="ff8080810f1a387b010f1a83d6530dfc" title="Gmail-2" host="4"
            dir="20061230" filename="231905_1463411198" />
    photos>
result>

�q�样��load不到��g��。没法去mailist里面扄��案，果然有�h问�?br />

Hello,

I am not sure about the subject but here is what I needed help for:

XML:

I am a Field.

I have already tried several structures and nothing seem to work.

Is this possible for XStream? :)

How is the Java class form to support this?

Thanks!




有�h回答是看Converter的文档。果然找到答案了�?br />自己写一个converter���可以了�?br />下面是我的converter
package com.jdkcn.xstream;

import java.util.ArrayList;
import java.util.List;

import com.jdkcn.yupoo.YupooPhoto;
import com.jdkcn.yupoo.YupooResult;
import com.thoughtworks.xstream.converters.Converter;
import com.thoughtworks.xstream.converters.MarshallingContext;
import com.thoughtworks.xstream.converters.UnmarshallingContext;
import com.thoughtworks.xstream.io.HierarchicalStreamReader;
import com.thoughtworks.xstream.io.HierarchicalStreamWriter;

/**
 * @author somebody
 * @since Jan 16, 2007 6:12:35 PM
 * @version $Id YupooResultConverter.java$
 */
public class YupooResultConverter implements Converter {
    /* (non-Javadoc)
     * @see com.thoughtworks.xstream.converters.Converter#marshal(java.lang.Object, com.thoughtworks.xstream.io.HierarchicalStreamWriter, com.thoughtworks.xstream.converters.MarshallingContext)
     */
    public void marshal(Object obj, HierarchicalStreamWriter writer, MarshallingContext context) {
        // FIXME unfinish.
    }

    /* (non-Javadoc)
     * @see com.thoughtworks.xstream.converters.Converter#unmarshal(com.thoughtworks.xstream.io.HierarchicalStreamReader, com.thoughtworks.xstream.converters.UnmarshallingContext)
     */
    public Object unmarshal(HierarchicalStreamReader reader, UnmarshallingContext context) {
        YupooResult result = new YupooResult();
        result.setPage(new Integer(reader.getAttribute("page")));
        result.setPages(new Integer(reader.getAttribute("pages")));
        result.setPerpage(new Integer(reader.getAttribute("perpage")));
        result.setTotal(new Integer(reader.getAttribute("total")));
        reader.moveDown();
        List<YupooPhoto> photos = new ArrayList<YupooPhoto>();
        while(reader.hasMoreChildren()) {
            reader.moveDown();
            YupooPhoto photo = new YupooPhoto();
            photo.setDir(reader.getAttribute("dir"));
            photo.setFilename(reader.getAttribute("filename"));
            photo.setHost(reader.getAttribute("host"));
            photo.setId(reader.getAttribute("id"));
            photo.setOwner(reader.getAttribute("owner"));
            photo.setTitle(reader.getAttribute("title"));
            photos.add(photo);
            reader.moveUp();
        }
        result.setPhotos(photos);
        return result;
    }
    /* (non-Javadoc)
     * @see com.thoughtworks.xstream.converters.ConverterMatcher#canConvert(java.lang.Class)
     */
    public boolean canConvert(Class clazz) {
        return clazz.equals(YupooResult.class);
    }
}

然后调用的地方修改一下就ok了�?br />XStream stream = new XStream();
stream.registerConverter(new YupooResultConverter());
stream.alias("result", YupooResult.class);



参�?
http://xstream.codehaus.org/converter-tutorial.html

2007�q?�?8日更新�?br />�q�里感谢�|�友 Ivan Chen�Q�西滨）的提�C�。原来新版的xstream可以��单的解决了。在1.2.1的doc里面扑ֈ�了这个两个方法�?br />

useAttributeFor

public void useAttributeFor(java.lang.String fieldName,
                            java.lang.Class type)

Use an XML attribute for a field or a specific type.

Parameters:: fieldName - the name of the field; type - the Class of the type to be rendered as XML attribute
Throws:: XStream.InitializationException - if no AttributeMapper is available
Since:: 1.2

useAttributeFor

public void useAttributeFor(java.lang.Class type)

Use an XML attribute for an arbotrary type.

Parameters:: type - the Class of the type to be rendered as XML attribute
Throws:: XStream.InitializationException - if no AttributeMapper is available
Since:: 1.2

�q�两个方法都是从1.2开始支持的�?br />也不用自己写converter了。这样就可以�?br />

        stream.alias("result", YupooResult.class);
        stream.useAttributeFor("page", Integer.class);
        stream.useAttributeFor("pages", Integer.class);
        stream.useAttributeFor("perpage", Integer.class);
        stream.useAttributeFor("total", Integer.class);
        stream.alias("photo", YupooPhoto.class);
        stream.useAttributeFor("id", String.class);
        stream.useAttributeFor("owner", String.class);
        stream.useAttributeFor("title", String.class);
        stream.useAttributeFor("host", String.class);
        stream.useAttributeFor("dir", String.class);
        stream.useAttributeFor("filename", String.class);

除经特别注明�?本文章版权归莫多泡��所�?
�|�名,非商业用�?保持一�? somebody(莫多)

莫多 2007-01-17 18:24 发表评论

又是��q��问题-Filter 配置也很重要

莫多 — Wed, 27 Dec 2006 02:37:00 GMT

上周更新了一下myblog,��d��了一个Filter�Q�做�l�计讉K��用。可是后来发现出��Cؕ码问题了。找了很久都没有扑ֈ�问题。debug的时候看�?CharacterEncodingFilter��实是执行了。不�q�就是没有效果。执行之前是ISO-8859-1�~�码的，执行之后�q�是�Q?CharacterEncodingFilter��没有�v��C��用。后来终于找到问题的原因了。原来是Filter配置先后��序的原因�?br /> 刚开始的配置是这��L(f��ng)��:

     < filter-mapping >
         < filter-name > requestCounterFilter filter-name >
         < url-pattern > *.jhtml url-pattern >
     filter-mapping >

     < filter-mapping >
         < filter-name > encodingFilter filter-name >
         < url-pattern > /dwr/* url-pattern >
     filter-mapping >

     < filter-mapping >
         < filter-name > encodingFilter filter-name >
         < url-pattern > *.jhtml url-pattern >
     filter-mapping >

     < filter-mapping >
         < filter-name > encodingFilter filter-name >
         < url-pattern > *.jsp url-pattern >
     filter-mapping >

先经�q�那个统计的filter然后再经�q�编码的filter。这��L(f��ng)��话编码的filter��׃��起作用了。只要吧�~�码的filter攑ֈ�最前面��没有问题了。改成这样就好�?br />

     < filter-mapping >
         < filter-name > encodingFilter filter-name >
         < url-pattern > /dwr/* url-pattern >
     filter-mapping >

     < filter-mapping >
         < filter-name > encodingFilter filter-name >
         < url-pattern > *.jhtml url-pattern >
     filter-mapping >

     < filter-mapping >
         < filter-name > encodingFilter filter-name >
         < url-pattern > *.jsp url-pattern >
     filter-mapping >

     < filter-mapping >
         < filter-name > requestCounterFilter filter-name >
         < url-pattern > *.jhtml url-pattern >
     filter-mapping >

以后大家一定要注意啊。顺序问题也是很重要的�?br /> 除经特别注明�?本文章版权归莫多泡��所�?
�|�名,非商业用�?保持一�? somebody(莫多)

莫多 2006-12-27 10:37 发表评论

莫多 — Tue, 12 Dec 2006 02:33:00 GMT

昨天晚上配置myblog的rewrite。发��C��个奇怪的问题。由于现在��用的�q�个pjblog�Q��ؓ(f��)了让搜烦引擎收录的连接有效。我��x��原来的asp�q�接rewrite到我的新�E�序上面。所以有�q�样一条规则�?br />

    <rule>
        <from>^/article.asp\?id=(.*)$from>
        <to type="redirect">/entry/$1.jhtmlto>
    rule>

但是我这��L(f��ng)��q�接��L��匚w��不到�Q�只要去掉那个？��可以了。这个正则表辑ּ�是没有问题的�?article.asp?id=64是可以匹配的到的�?br /> 后来�?.0的manual (http://tuckey.org/urlrewrite/manual/3.0/)才发现原来是�q�个的问题�?br />

element

The top level element.

Attribute	Possible Value	Explanation
default-match-type (optional)	regex (default)	All rules and thier conditions will be processed using the Java Regular Expression engine (unless `match-type` is specified on a rule).
default-match-type (optional)	wildcard	All rules and thier conditions will be processed using the Wildcard Expression engine (unless `match-type` is specified on a rule).
decode-using (optional)	utf8 (default)	When URL is decoded UTF-8 will be used.
	null	Do not decode.
	[encoding]	Any string representing a supported character encoding eg, ISO-8859-1. See Java Charset Object for more info.
use-query-string (optional)	false (default)	The query string will not be appended to the url that the "from" element matches against.
use-query-string (optional)	true	The query string will be appended to the url that the "from" element matches against.
use-context (optional)	false (default)	The context path will not be added to the url that the "from" element matches against.
use-context (optional)	true	The context path will be added to the url that the "from" element matches against.

��是那个use-query-string 的问题，默认的是不��用query-string��是�?后面的都忽略了。所以就不能匚w��C��。只要在里面加一个属性就可以了�?br />

<urlrewrite use-query-string="true">

urlrewrite>

除经特别注明�?本文章版权归莫多泡��所�?
�|�名,非商业用�?保持一�? somebody(莫多)

莫多 2006-12-12 10:33 发表评论

SpringXmlrpcServiceExporter for xmlrpc3.x

莫多 — Sun, 22 Oct 2006 08:12:00 GMT

我们的项目用��C��xmlrpc,不过�q�是用的2.x版本的。由于xmlrpc3.x地推出。提供了NULL,Serializable�{�的支持�Q�将原来的Hashtable�Ҏ(gu��)��了Map,Vector�Ҏ(gu��)��了List。都是不错的�q�步。所以我们决定从xmlrpc2.x升��到xmlrpc3.x.
在spring里面有几个ServiceExporter�Q�org.springframework.remoting.rmi.RmiServiceExporter、org.springframework.remoting.caucho.HessianServiceExporter、org.springframework.remoting.caucho.BurlapServiceExporter。不�q�没有xmlrpc的serviceExporter�Q�原来我们是自己��装的XmlRpcServer,用servlet提供服务�?eg:http://localhost:8080/community/service/xmlrpc)没有和spring集成虽然用了spring�?br /> 考虑到spring的便利以�?qi��ng)配�|�的同意我决定将xmlrpcService攑օ�spring中。xmlrpc3.x和xmlrpc2.x的代码基本上没有一��L(f��ng)��。改了很多东�ѝ��除了类型变化之外，�q�添加了对异常的支持。详�l�信息请参照xmlrpc3.x源代码�?br />XmlRpcServiceExporter.java

package com.jdkcn.xmlrpc;

import javax.servlet.ServletException;

/**
* @author somebody
* @since 2006-9-27 03:59:22 pm
* @version $Id XmlRpcServiceExporter.java$
*/
public class XmlRpcServiceExporter extends RemoteExporter implements
        Controller, InitializingBean {

     private XmlRpcServletServer server;

     public String serviceName;

     public Resource configFile;

     public Boolean enabledForExtensions;

     public void setEnabledForExtensions(Boolean enabledForExtensions) {
         this .enabledForExtensions = enabledForExtensions;
    }

     public void setConfigFile(Resource configFile) {
         this .configFile = configFile;
    }

     public String getServiceName() {
         return serviceName;
    }

     public void setServiceName(String serviceName) {
         this .serviceName = serviceName;
    }

     public XmlRpcServletServer getXmlRpcServletServer() {
         return server;
    }

     /* (non-Javadoc)
     * @see org.springframework.web.servlet.mvc.Controller#handleRequest(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
      */
     public ModelAndView handleRequest(HttpServletRequest request,
            HttpServletResponse response) throws Exception {
         if ( ! WebContentGenerator.METHOD_POST.equals(request.getMethod())) {
             throw new ServletException( " XmlRpcServiceExporter only supports POST requests " );
        }
        server.execute(request, response);
         return null ;
    }

     /* (non-Javadoc)
     * @see org.springframework.beans.factory.InitializingBean#afterPropertiesSet()
      */
     public void afterPropertiesSet() throws Exception {
        server = new XmlRpcServletServer();
        server.setHandlerMapping(newXmlRpcHandlerMapping());
         if (enabledForExtensions != null ) {
            ((XmlRpcServerConfigImpl) server.getConfig()).setEnabledForExtensions(enabledForExtensions.booleanValue());
        }

    }

     /** Creates a new handler mapping. The default implementation loads
     * a property file from the resource
     *
      */
     protected XmlRpcHandlerMapping newXmlRpcHandlerMapping() throws XmlRpcException {

        SpringHandlerMapping mapping = new SpringHandlerMapping(getServiceInterface());
        mapping.addHandler(getServiceName(), getServiceInterface());
        mapping.setTagetObject(getProxyForService());
         return mapping;
    }

}

spring配置文�g

    <bean id="accountService"  class="com.jdkcn.service.impl.AccountServiceImpl">
    bean>
        <bean name="rpcAccountService" class="com.jdkcn.xmlrpc.XmlRpcServiceExporter">
        <property name="service">
            <ref bean="accountService"/>
        property>
        <property name="serviceName">
            <value>jdkcn.accountServicevalue>
        property>
        <property name="enabledForExtensions">
            <value>truevalue>
        property>
        <property name="serviceInterface">
            <value>com.jdkcn.service.AccountServicevalue>
        property>
    bean>

然后映射一个地址��可以通过xmlrpc讉K��服务�?br />

    <bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
        <property name="mappings">
            <props>
                <prop key="/account">rpcAccountServiceprop>
            props>
        property>
    bean>

web.xml

    <context-param>
        <param-name>contextConfigLocationparam-name>
        <param-value>
            classpath:spring/global.xml
        param-value>
    context-param>

    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
    listener>

        <servlet>
            <servlet-name>serviceservlet-name>
            <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
        servlet>

        <servlet-mapping>
            <servlet-name>serviceservlet-name>
            <url-pattern>/service/xmlrpc3/*url-pattern>
        servlet-mapping>

然后我们的service地址��是�q�样的http://localhost:8080/service/xmlrpc3/account

希望对大家有用，�q�里提供project下蝲。包含一个client�E�序。com.jdkcn.xmlrpc.Client

点击下蝲完整代码

除经特别注明�?本文章版权归莫多泡��所�?
�|�名,非商业用�?保持一�? somebody(莫多)

莫多 2006-10-22 16:12 发表评论

关于Hibernate3的escape解决�Ҏ(gu��)��

莫多 — Mon, 16 Oct 2006 15:29:00 GMT

不知道大家有没有��到�Q�还是没有这�U�需求。就是用like来查询，我们没有用Lucene,Compass�q�种全文索引的方�?我们只是��单的��d��%�q�行like查询。用��h��索的时候就使用*�?来代表�Q意和一个。所以要�?%"�?_"�q�行转义�Q�我们��用的是oracle数据库。sql语句看�v来可能是�q�样的�?br />

SELECT * FROM t_user where nickname like '%Goo\_D' escape '\'

�q�里对_�q�行转义了。因为用��h��U�包含下划线�Q�如果不�q�行转义��p��C�Z��个�Q意字�W�。有时候我们可能还需要对%�q�行转义。同��L(f��ng)��Ҏ(gu��)��?前加\% 但是比�v普通的like语句。多了一个声明�{义符的语句。所以我们会(x��)惛_��q�样的语�?br />

DetachedCriteria criteria = DetachedCriteria.forClass(User.class);
criteria.add(Restrictions.like("nickname", user.getNickname()+"' escape'\"));

但是�q�样是不��用的�?br />接下来可能会(x��)惛_��使用Hibernate3的原生sql查询�Q�其实我们不需要这样做。我们还是��用Criteria条�g查询�?br />

criteria.add(Restrictions.sqlRestriction("{alias}.nickname like ? escape'/'", StringUtil.escapeSQLLike(user.getNickname()), Hibernate.STRING));

�q�样Hibernate产生的语句就是我们想要的语句了�?br />

    /**
     * 转义like语句中的
     * '_''%'
     * ��?lt;code>'?'转成sql�?lt;code>'/_'
     * ��?lt;code>'%'转成sql�?lt;code>'/%'
     *

     *   例如搜烦?aa*bb?c_d%f��{化成

     *   _aa%bb_c/_d/%f
     *

     * @param likeStr
     * @return
     * @author http://jdkcn.com">somebody
     */
    public static String escapeSQLLike(String likeStr) {
        String str = StringUtils.replace(likeStr, "_", "/_");
        str = StringUtils.replace(str, "%",    "/%");
        str = StringUtils.replace(str, "?", "_");
        str = StringUtils.replace(str, "*", "%");
        return str;
    }

除经特别注明�?本文章版权归莫多泡��所�?
�|�名,非商业用�?保持一�? somebody(莫多)

莫多 2006-10-16 23:29 发表评论

关于spring启动的优化的问题

莫多 — Thu, 10 Aug 2006 02:59:00 GMT

jspark 的这��文章�?a class="postTitle2" id="viewpost1_TitleUrl" href="/jspark/archive/2006/07/29/60712.html">开发阶�D�eclipse下面的spring容器的启动优�?/a> 》讲到如何加快spring的启动速度。非常感�?span style="FONT-WEIGHT: bold">jspark. 一下是引用的原文：(x��)

最�q�在负责一个大��目�Q�项目组成员包括��目�l�理大概10个�h左右。项目技术用struts+spring+hibernate实现。项目的规模相对来说是比较大的，��d��?0大模块，每个大模块又分�ؓ(f��)有十几个、甚臛_��十个��模块。开发工��L(f��ng)��eclipse�Q�由于在开发阶�D�，��目开发成员需要频�J�重启服务器。在启动服务器的时候，每次启动旉��L��?x��)超�q?分钟。记得以前在做另外一个项目时�Q�启动时间不�?�U�钟�Q�相差了10倍，而且��目规模是差不多的�?/span>

    从初步分析来��_(d��)��应该是hibernate解释hbm.xml时花�Ҏ(gu��)��_(d��)��或者可能是spring容器启动�q�解释所有的bean配置文�g。诊断了一下，发现1分钟消耗的旉��主要分布在hibernate解释hbm.xml��p��5�U�；spring容器从启动到解释bean配置文�g竟然�׃��58�U�，真是太嚣张了。当旉��常怀疑spring的效率问题。企图从�|�上搜烦相关资料�Q�看看有什么优化措施�?/span>

    首先是找��C��hibernate的启动优�?http://www.hibernate.org/194.html 里面的主要思想是通过��xml序列花到本地的文仉��Q�每�ơ读取的时候根据情况，从本地文件读取�ƈ反序列化�Q�节省了hibernate xml的解析时间。按照这个方式测试了一下，发现hibernate的启动时间从5�U�降低到3�U�，但是�q�个优化对于整个启动�q�程是杯水�R薪的�Q�毫无用处�?/span>

    没办法，又仔�l�查看了spring的资料，�l�于发现spring的容器是提供了lazy-load的，即默认的�~�省讄��是bean没有lazy- load�Q�该属性处于false状态，�q�样��D��spring在启动过�E�导致在启动时候，�?x��)默认加载整个对象实例图�Q�从初始化ACTION配置、到 service配置到dao配置、乃臛_��数据库连接、事务等�{�。这么庞大的规模�Q�难怪spring的启动时间要花将�q?分钟。尝试了一下，把beans�?default-lazy-init改�ؓ(f��)true��，再次启动�Q�速度从原来的55�U�，降到8�U�钟�Q�！Great�Q�虽然是非常��一个改动，但是影响��实非常大。一个项目组10个�h�Q�假若每个�h一天��^均需要在eclipse下启动测试服务器50�ơ。那么一天项目组需要重�?00�ơ，每次节省50�U�的话，��是 25000�U�，��近几个��时�Q�差不多一个工作日�Q�多么可观的数字�Q?/span>

   不过在运行期间第一�ơ点��面的时候，�׃��spring做了lazy-load�Q�现在就需要启动一部分需要的beans�Q�所以稍微慢2�Q?�U�钟�Q�但是明显比�{�几十秒要快很多�Q�值得一鉴�?/span>

    以上是针对开发阶�D늚�spring容器启动优化�Q�在部��v到实际环境中�Q�倒是没必要设�|��ؓ(f��)lazy-load。毕竟部�|�到实际环境中不是经常的事，每次启动1分钟倒不是大问题�?

我这里要提醒的是不是说有的beans都能讄��default-lazy-init成�ؓ(f��)true.对于scheduler的bean不能用lazy-init

< beans default-lazy-init ="true" >

     < bean class ="org.springframework.scheduling.quartz.SchedulerFactoryBean" >
         < property name ="triggers" >
             < list >
                 < ref bean ="buildHtmlTrigger" />
                 < ref bean ="askTrigger" />
                 < ref bean ="mailSenderTrigger" />
                 < ref bean ="topicDetailBuildTrigger" />
                 < ref bean ="forumBuildTrigger" />
                 < ref bean ="topicBuildTrigger" />
             list >
         property >
     bean >
beans >

�q�样的话。所有的scheduler��都不管用了。所以请大家要注意�?br />

< beans >

     < bean class ="org.springframework.scheduling.quartz.SchedulerFactoryBean" >
         < property name ="triggers" >
             < list >
                 < ref bean ="buildHtmlTrigger" />
                 < ref bean ="askTrigger" />
                 < ref bean ="mailSenderTrigger" />
                 < ref bean ="topicDetailBuildTrigger" />
                 < ref bean ="forumBuildTrigger" />
                 < ref bean ="topicBuildTrigger" />
             list >
         property >
     bean >
beans >

莫多 2006-08-10 10:59 发表评论

�q�是��q��问题

莫多 — Sat, 22 Jul 2006 10:13:00 GMT

虽然��目全部采用了UTF-8�~�码�Q�所有的源文�?.java,*.jsc,*.html,*.ftl都采用了UTF-8�~�码。可是还是出��C��q��问题。很是不爽，后来扑ֈ�了tomcat�Q�和resin的配�|��?/p>

Tomcat的配�|��?conf/server.xml)

    <Connector port="80" maxHttpHeaderSize="8192"
               maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
               enableLookups="false" redirectPort="8443" acceptCount="100"
               connectionTimeout="20000" disableUploadTimeout="true" URIEncoding="UTF-8"/>
Resin的配�|��?conf/resin.conf)
character-encoding
Resin 1.1
child of: resin, server, host-default, host, web-app-default, web-app
default: The default value is ISO-8859-1.
Specifies the default character encoding for the environment.
shift_jis ...

�q�个是resin doc里面的我是在web-app-default里面加上了encoding的配�|?/p>

     < web-app-default >
       < character-encoding > UTF-8 character-encoding >

     web-app-default >

希望对你的项目有帮助�?/p>

除经特别注明�?本文章版权归莫多泡��所�?
�|�名,非商业用�?保持一�? somebody(莫多)

莫多 2006-07-22 18:13 发表评论

莫多 — Tue, 18 Jul 2006 11:41:00 GMT

��目中多个项目需要同时引用一个静态资源，所以就惛_��配置不同的虚拟目录指到同一个目录。于是有下面的配�|?

但是发现�q�样只有后面一个管�?http://localhost:8080/passport/jsvm2)�q�个是可�?可是(http://localhost:8080/community/jsvm2)��׃��?很是郁闷。只要后面的document-directory不是同一个目录就成�?br /> 后来在resin的doc里面看到path的配�|?/p>

path-mapping

child of: web-app-default, web-app

Maps url patterns to real paths. If using a server like IIS, you may need to match the server's path aliases.

Attribute	Meaning	default
url-pattern	A pattern matching the url: /foo/, /foo, or .foo
url-regexp	A regular expression matching the url
real-path	The prefix of the real path. When used with url-regexp, allows substitution variables like $1.

�Ҏ(gu��)��q�样的配�|�就ok了�?/p>

        <web-app id="/community" document-directory="D:\\projects\\FelooCommunityWeb">
          <path-mapping url-pattern='jsvm2/*'
              real-path='D:\\projects\\FelooComponents\\jsvm2'/>
      >

            <web-app id="/passport" document-directory="D:\\projects\\FelooPassportWeb">
          <path-mapping url-pattern='jsvm2/*'
              real-path='D:\\projects\\FelooComponents\\jsvm2'/>
      >

除经特别注明�?本文章版权归莫多泡��所�?
�|�名,非商业用�?保持一�? somebody(莫多)

莫多 2006-07-18 19:41 发表评论

莫多 — Sun, 16 Jul 2006 18:11:00 GMT

自从换工作之后就没有研究�q�DWR了。下载了最新的DWR2.0M2版本�?.0加了很多东西�Q�也有不��变化的地方。最�Ҏ(gu��)��看到的变化就是包名的变化�?�?uk.ltd.getahead 变成�?org.directwebremoting �?br /> 换上了新的配�|?/p>

启动服务�Q�抱错了�?/p>

java.lang.IllegalArgumentException: DefaultContainer can't find a classes
at org.directwebremoting.impl.DefaultContainer.getBean(DefaultContainer.java:216)
at org.directwebremoting.annotations.AnnotationsConfigurator.configure(AnnotationsConfigurator.java:50)
at org.directwebremoting.servlet.DwrServlet.init(DwrServlet.java:121)

在DWR的Maillist里面搜烦了一下，�q�有�{�案�Q�原来DWR2.0 加入了JDK5的注�?annotations).DwrServlet初始化的时候会(x��)��L��查注释的�c�，找不到就抱错了。如果你不用annotations也可以忽略掉�q�个错误。不�q�看��h��L��不爽。有人提��Z��Ҏ(gu��)��。这样就ok了�?/p>

     < servlet >
         < servlet-name > dwr-invoker servlet-name >
         < servlet-class > org.directwebremoting.servlet.DwrServlet servlet-class >
         < init-param >
           < param-name > debug param-name >
           < param-value > true param-value >
         init-param >
         < init-param >
            < param-name > classes param-name >
            < param-value > java.lang.Object param-value >
         init-param >
         < load-on-startup > 100 load-on-startup >
     servlet >

除经特别注明�?本文章版权归莫多泡��所�?
�|�名,非商业用�?保持一�? somebody(莫多)

莫多 2006-07-17 02:11 发表评论

关于Freemarker生成静态文件的问题

莫多 — Wed, 21 Jun 2006 02:46:00 GMT

首先感谢JScud提供的好文章。�?a class="" title="" target="">使用FreeMarker生成Html静态文�?实例)�?br /> 在我们的��目中也用到了Freemarker生成静态文件。不�q�这里我要说的是�~�码的问题。我们的��目使用的都是UTF-8�~�码�Q�我直接使用飞云��侠提供的方法生成的文�g在UTF-8�~�码下察看是��q��Q�而GBK正常(后来发现因�ؓ(f��)我用的中文操作系�l�所以用GBK查看正常)�?br /> 当然我把Freemarker的配�|�都�Ҏ(gu��)��了UTF-8�Q�我的模版文件也是UTF-8�~�码的。下面是原来的代�?br />

    public void setTemplatePath(Resource templatePath) {
        this.templatePath = templatePath;
        //讄��freemarker的参�?/span>
        freemarkerCfg = new Configuration();
        try {
            freemarkerCfg.setDirectoryForTemplateLoading(this.templatePath.getFile());
            freemarkerCfg.setObjectWrapper(new DefaultObjectWrapper());
            freemarkerCfg.setDefaultEncoding("UTF-8");
        } catch (IOException ex) {
            throw new SystemException("No Directory found,please check you config.");
        }
    }

    /**
     * 生成静态文�?br />     * @param templateFileName 模版名称eg:(biz/order.ftl)
     * @param propMap 用于处理模板的属性Object映射
     * @param htmlFilePath 要生成的静态文件的路径,相对讄��中的根�\�?例如 "/biz/2006/5/"
     * @param htmlFileName 要生成的文�g�?例如 "123.htm"
     * @return
     */
    private boolean buildHtml(String templateFileName,Map propMap, String htmlFilePath,String htmlFileName){
        try {
            Template template = freemarkerCfg.getTemplate(templateFileName);
            template.setEncoding("UTF-8");
            //创徏生成文�g目录
            creatDirs(buildPath.getFilename(),htmlFilePath);
            File htmlFile = new File(buildPath + htmlFilePath + htmlFileName);
            Writer out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(htmlFile)));
            template.process(propMap,out);
            out.flush();
            return true;
        } catch (TemplateException ex){
            log.error("Build Error"+templateFileName,ex);
            return false;
        } catch (IOException e) {
            log.error("Build Error"+templateFileName,e);
            return false;
        }

    }

下面是修改之后的代码

    /**
     * 生成静态文�?br />     * @param templateFileName 模版名称eg:(biz/order.ftl)
     * @param propMap 用于处理模板的属性Object映射
     * @param htmlFilePath 要生成的静态文件的路径,相对讄��中的根�\�?例如 "/biz/2006/5/"
     * @param htmlFileName 要生成的文�g�?例如 "123.htm"
     * @return
     */
    private boolean buildHtml(String templateFileName,Map propMap, String htmlFilePath,String htmlFileName){
        try {
            Template template = freemarkerCfg.getTemplate(templateFileName);
            template.setEncoding("UTF-8");
            //创徏生成文�g目录
            creatDirs(buildPath.getFilename(),htmlFilePath);
            File htmlFile = new File(buildPath + htmlFilePath + htmlFileName);
            Writer out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(htmlFile),"UTF-8"));
            template.process(propMap,out);
            out.flush();
            return true;
        } catch (TemplateException ex){
            log.error("Build Error"+templateFileName,ex);
            return false;
        } catch (IOException e) {
            log.error("Build Error"+templateFileName,e);
            return false;
        }

    }

原因��在于OutputStreamWriter的不同构造方�?br />
OutputStreamWriter(OutputStream out)
创徏使用默认字符�~�码�?OutputStreamWriter�?br />OutputStreamWriter(OutputStream out, String charsetName)
创徏使用指定字符集的 OutputStreamWriter�?br />
�q�个是中文JDK的文档说明，刚开始我使用默认的构造函敎ͼ�所以��用了�pȝ��默认的编码，GBK�Q�所以在生成静态文件的时候把UTF-8内容用GBK�~�码写入了，所以在UTF-8下浏览就有问题�?br />
�q�有关于修改模版文�g同样也要注意�q�个问题�?br />

    public String loadTemplate(String templateName) {
        StringBuffer sb = new StringBuffer();
        try {
            File file = new File(templatePath+"/"+templateName);
            BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream(file),"UTF-8"));
            String line = reader.readLine();
            while(line != null)    {
                sb.append(line);
                sb.append("\r\n");
                line = reader.readLine();
            }
            reader.close();
        } catch (IOException e) {
            throw new SystemException("Loading template Error:",e);
        }
        return sb.toString();
    }

    public void saveTemplate(String templateName, String templateContent) {
        try {
            File file = new File(templatePath + "/" + templateName);
            Writer out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file),"UTF-8"));
            out.write(templateContent);
            out.flush();
            //扔出templatesave事�g
            TemplateSaveEvent evt = new TemplateSaveEvent();
            evt.setTemplateName(templateName);
            dispatchTemplateEvent(evt);
        } catch (IOException e) {
            throw new SystemException("Write template Error",e);
        }
    }

莫多 2006-06-21 10:46 发表评论