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分享struts2 + Jquery+json 配出出错 ， 大家帮看看吧
我的运行没有错误， 就是加上了Json 的配置之后就有错误了， 启动tomcat 就报错误， 如果把红色不分区掉就正常的运行，加上就报错误， 下面是错误， 帮我看看吧， 谢谢
<action name="irjsonProv" class="rjsonActImpl" method="JsonProvince">
<result type="json"></result>
</action>
错误如下：
2012-08-17 12:13:37,953 [main] ERROR org.apache.struts2.dispatcher.Dispatcher - Dispatcher initialization failed
Unable to load configuration. - action - file:/E:/hanwang-tomcat-6.0.30/webapps/speed/WEB-INF/classes/com/user/speed/lucks/config/struts-ciayongsong.xml:42:72
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:69)
at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:371)
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:415)
at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:69)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:51)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:295)
at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:115)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4038)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4692)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:546)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1041)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:964)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:502)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1277)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:321)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1061)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:785)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
at org.apache.catalina.core.StandardService.start(StandardService.java:525)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:701)
at org.apache.catalina.startup.Catalina.start(Catalina.java:585)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Caused by: Error building results for action irjsonProv in namespace - action - file:/E:/hanwang-tomcat-6.0.30/webapps/speed/WEB-INF/classes/com/user/speed/lucks/config/struts-ciayongsong.xml:42:72
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addAction(XmlConfigurationProvider.java:378)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addPackage(XmlConfigurationProvider.java:479)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadPackages(XmlConfigurationProvider.java:275)
at org.apache.struts2.config.StrutsXmlConfigurationProvider.loadPackages(StrutsXmlConfigurationProvider.java:111)
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:204)
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:66)
... 31 more
Caused by: There is no result type defined for type 'json' mapped with name 'success'. Did you mean 'json'? - result - file:/E:/hanwang-tomcat-6.0.30/webapps/speed/WEB-INF/classes/com/user/speed/lucks/config/struts-ciayongsong.xml:43:33
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.buildResults(XmlConfigurationProvider.java:632)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addAction(XmlConfigurationProvider.java:376)
... 36 more
2012-8-17 12:13:37 org.apache.catalina.core.StandardContext filterStart
...全文
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jim-single 2012-08-21
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[Quote=引用 13 楼 的回复:]
额，给你个标准的列子，gson你可以去http://code.google.com/p/google-gson/ 下载，可以在java object和json相互转换的我觉得还可以比较方便Java code
package com.xiaobao.action.json;
import java.io.PrintWriter;
import javax.servlet.http.Http……
[/Quote]
js 这样写就可以判断出来了 ， 太感谢了
<script type="text/javascript">
var gsonTOjson = function(){
$.getJSON("getJsonAction.action",function(resJson){
$.each(resJson, function(idx, item) {
alert(idx+":"+item);
});
});
}
</script>
额，给你个标准的列子，gson你可以去http://code.google.com/p/google-gson/ 下载，可以在java object和json相互转换的我觉得还可以比较方便Java code
package com.xiaobao.action.json;
import java.io.PrintWriter;
import javax.servlet.http.Http……
[/Quote]
js 这样写就可以判断出来了 ， 太感谢了
<script type="text/javascript">
var gsonTOjson = function(){
$.getJSON("getJsonAction.action",function(resJson){
$.each(resJson, function(idx, item) {
alert(idx+":"+item);
});
});
}
</script>
jim-single 2012-08-18
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[Quote=引用 4 楼 的回复:]
关于Struts配置的问题，希望楼主看下以下两篇文章：http://kingxss.iteye.com/blog/1622455 http://www.vijun.com/web/struts/2012/02/5f84f4d9355071010135650850770098.html，另外你返回的json串应该不需要你自己转换，Struts插件已经帮你转换了，而且即使要手动转换也不要这样拼接字符……
[/Quote]
挺好的，
关于Struts配置的问题，希望楼主看下以下两篇文章：http://kingxss.iteye.com/blog/1622455 http://www.vijun.com/web/struts/2012/02/5f84f4d9355071010135650850770098.html，另外你返回的json串应该不需要你自己转换，Struts插件已经帮你转换了，而且即使要手动转换也不要这样拼接字符……
[/Quote]
挺好的，
jim-single 2012-08-17
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spring application-mians.xml
<bean id="rjsonActImpl" class="com.user.speed.lucks.acti.RjsonManagerAct" >
<property name="rjsonSevDao" ref="rjsonSevDao"></property>
</bean>
<bean id="rjsonActImpl" class="com.user.speed.lucks.acti.RjsonManagerAct" >
<property name="rjsonSevDao" ref="rjsonSevDao"></property>
</bean>
jim-single 2012-08-17
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这个是方法
/// 查询所有的省 -直辖市 - 区
public String JsonProvince(){
String hql="SELECT u FROM GAJSON GROUP BY u.rname";
try {
lists = rjsonSevDao.queryListByqueryString(hql);
if (lists.size() > 0) {
StringBuilder sb = new StringBuilder();
sb.append("[");
for (Gajson jso : lists) {
sb.append("{\"ID\":\"");
sb.append(jso.getRname());
sb.append("\",\"Name\":\"");
sb.append(jso.getRname());
sb.append("\"}");
if (lists.size() > 0) {
sb.append(",");
}
}
sb.append("]");
proString = sb.toString();
System.out.println(proString + "-------------");
}
return ActionSupport.SUCCESS;
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
return ActionSupport.ERROR;
}
}
/// 查询所有的省 -直辖市 - 区
public String JsonProvince(){
String hql="SELECT u FROM GAJSON GROUP BY u.rname";
try {
lists = rjsonSevDao.queryListByqueryString(hql);
if (lists.size() > 0) {
StringBuilder sb = new StringBuilder();
sb.append("[");
for (Gajson jso : lists) {
sb.append("{\"ID\":\"");
sb.append(jso.getRname());
sb.append("\",\"Name\":\"");
sb.append(jso.getRname());
sb.append("\"}");
if (lists.size() > 0) {
sb.append(",");
}
}
sb.append("]");
proString = sb.toString();
System.out.println(proString + "-------------");
}
return ActionSupport.SUCCESS;
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
return ActionSupport.ERROR;
}
}
jim-single 2012-08-17
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严重: Exception starting filter struts2
Unable to load configuration. - action - file:/E:/hanwang-tomcat-6.0.30/webapps/speed/WEB-INF/classes/com/user/speed/lucks/config/struts-ciayongsong.xml:42:72
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:428)
at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:69)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:51)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:295)
at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:115)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4038)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4692)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:546)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1041)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:964)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:502)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1277)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:321)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1061)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:785)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
at org.apache.catalina.core.StandardService.start(StandardService.java:525)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:701)
at org.apache.catalina.startup.Catalina.start(Catalina.java:585)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Caused by: Unable to load configuration. - action - file:/E:/hanwang-tomcat-6.0.30/webapps/speed/WEB-INF/classes/com/user/speed/lucks/config/struts-ciayongsong.xml:42:72
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:69)
at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:371)
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:415)
... 29 more
Caused by: Error building results for action irjsonProv in namespace - action - file:/E:/hanwang-tomcat-6.0.30/webapps/speed/WEB-INF/classes/com/user/speed/lucks/config/struts-ciayongsong.xml:42:72
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addAction(XmlConfigurationProvider.java:378)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addPackage(XmlConfigurationProvider.java:479)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadPackages(XmlConfigurationProvider.java:275)
at org.apache.struts2.config.StrutsXmlConfigurationProvider.loadPackages(StrutsXmlConfigurationProvider.java:111)
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:204)
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:66)
... 31 more
Caused by: There is no result type defined for type 'json' mapped with name 'success'. Did you mean 'json'? - result - file:/E:/hanwang-tomcat-6.0.30/webapps/speed/WEB-INF/classes/com/user/speed/lucks/config/struts-ciayongsong.xml:43:33
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.buildResults(XmlConfigurationProvider.java:632)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addAction(XmlConfigurationProvider.java:376)
... 36 more
2012-8-17 12:13:37 org.apache.catalina.core.StandardContext start
严重: Error filterStart
2012-8-17 12:13:37 org.apache.catalina.core.StandardContext start
严重: Context [/speed] startup failed due to previous errors
2012-8-17 12:13:37 org.apache.catalina.core.ApplicationContext log
信息: Closing Spring root WebApplicationContext
2012-8-17 12:13:38 org.apache.catalina.core.ApplicationContext log
信息: Shutting down log4j
2012-8-17 12:13:38 org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc
严重: The web application [/speed] registered the JDBC driver [com.mysql.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
2012-8-17 12:13:38 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
严重: The web application [/speed] appears to have started a thread named [Timer-1] but has failed to stop it. This is very likely to create a memory leak.
2012-8-17 12:13:38 org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap
严重: The web application [/speed] created a ThreadLocal with key of type [com.opensymphony.xwork2.inject.ContainerImpl$10] (value [com.opensymphony.xwork2.inject.ContainerImpl$10@738dcb]) and a value of type [java.lang.Object[]] (value [[Ljava.lang.Object;@6212dd]) but failed to remove it when the web application was stopped. This is very likely to create a memory leak.
2012-8-17 12:13:38 org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap
严重: The web application [/speed] created a ThreadLocal with key of type [com.opensymphony.xwork2.inject.ContainerImpl$10] (value [com.opensymphony.xwork2.inject.ContainerImpl$10@c47498]) and a value of type [java.lang.Object[]] (value [[Ljava.lang.Object;@1c2dad7]) but failed to remove it when the web application was stopped. This is very likely to create a memory leak.
log4j:ERROR LogMananger.repositorySelector was null likely due to error in class reloading, using NOPLoggerRepository.
Unable to load configuration. - action - file:/E:/hanwang-tomcat-6.0.30/webapps/speed/WEB-INF/classes/com/user/speed/lucks/config/struts-ciayongsong.xml:42:72
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:428)
at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:69)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:51)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:295)
at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:115)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4038)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4692)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:546)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1041)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:964)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:502)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1277)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:321)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1061)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:785)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
at org.apache.catalina.core.StandardService.start(StandardService.java:525)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:701)
at org.apache.catalina.startup.Catalina.start(Catalina.java:585)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Caused by: Unable to load configuration. - action - file:/E:/hanwang-tomcat-6.0.30/webapps/speed/WEB-INF/classes/com/user/speed/lucks/config/struts-ciayongsong.xml:42:72
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:69)
at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:371)
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:415)
... 29 more
Caused by: Error building results for action irjsonProv in namespace - action - file:/E:/hanwang-tomcat-6.0.30/webapps/speed/WEB-INF/classes/com/user/speed/lucks/config/struts-ciayongsong.xml:42:72
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addAction(XmlConfigurationProvider.java:378)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addPackage(XmlConfigurationProvider.java:479)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadPackages(XmlConfigurationProvider.java:275)
at org.apache.struts2.config.StrutsXmlConfigurationProvider.loadPackages(StrutsXmlConfigurationProvider.java:111)
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:204)
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:66)
... 31 more
Caused by: There is no result type defined for type 'json' mapped with name 'success'. Did you mean 'json'? - result - file:/E:/hanwang-tomcat-6.0.30/webapps/speed/WEB-INF/classes/com/user/speed/lucks/config/struts-ciayongsong.xml:43:33
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.buildResults(XmlConfigurationProvider.java:632)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addAction(XmlConfigurationProvider.java:376)
... 36 more
2012-8-17 12:13:37 org.apache.catalina.core.StandardContext start
严重: Error filterStart
2012-8-17 12:13:37 org.apache.catalina.core.StandardContext start
严重: Context [/speed] startup failed due to previous errors
2012-8-17 12:13:37 org.apache.catalina.core.ApplicationContext log
信息: Closing Spring root WebApplicationContext
2012-8-17 12:13:38 org.apache.catalina.core.ApplicationContext log
信息: Shutting down log4j
2012-8-17 12:13:38 org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc
严重: The web application [/speed] registered the JDBC driver [com.mysql.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
2012-8-17 12:13:38 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
严重: The web application [/speed] appears to have started a thread named [Timer-1] but has failed to stop it. This is very likely to create a memory leak.
2012-8-17 12:13:38 org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap
严重: The web application [/speed] created a ThreadLocal with key of type [com.opensymphony.xwork2.inject.ContainerImpl$10] (value [com.opensymphony.xwork2.inject.ContainerImpl$10@738dcb]) and a value of type [java.lang.Object[]] (value [[Ljava.lang.Object;@6212dd]) but failed to remove it when the web application was stopped. This is very likely to create a memory leak.
2012-8-17 12:13:38 org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap
严重: The web application [/speed] created a ThreadLocal with key of type [com.opensymphony.xwork2.inject.ContainerImpl$10] (value [com.opensymphony.xwork2.inject.ContainerImpl$10@c47498]) and a value of type [java.lang.Object[]] (value [[Ljava.lang.Object;@1c2dad7]) but failed to remove it when the web application was stopped. This is very likely to create a memory leak.
log4j:ERROR LogMananger.repositorySelector was null likely due to error in class reloading, using NOPLoggerRepository.
dw_java08 2012-08-17
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[Quote=引用 5 楼 的回复:]
错误：
Caused by: There is no result type defined for type 'json' mapped with name 'success'.
在JsonProvince方法中，
return ActionSupport.SUCCESS;
但在action配置中，result并没有配置SUCCESS
XML code
<acti……
[/Quote]
5楼正解。
错误：
Caused by: There is no result type defined for type 'json' mapped with name 'success'.
在JsonProvince方法中，
return ActionSupport.SUCCESS;
但在action配置中，result并没有配置SUCCESS
XML code
<acti……
[/Quote]
5楼正解。
ebonyzhang 2012-08-17
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type=json
result的name属性要和返回的属性名一样
result的name属性要和返回的属性名一样
ebonyzhang 2012-08-17
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[Quote=引用 4 楼 的回复:]
关于Struts配置的问题，希望楼主看下以下两篇文章：http://kingxss.iteye.com/blog/1622455 http://www.vijun.com/web/struts/2012/02/5f84f4d9355071010135650850770098.html，另外你返回的json串应该不需要你自己转换，Struts插件已经帮你转换了，而且即使要手动转换也不要这样拼接字符串……
[/Quote]
非常有用，谢谢！
关于Struts配置的问题，希望楼主看下以下两篇文章：http://kingxss.iteye.com/blog/1622455 http://www.vijun.com/web/struts/2012/02/5f84f4d9355071010135650850770098.html，另外你返回的json串应该不需要你自己转换，Struts插件已经帮你转换了，而且即使要手动转换也不要这样拼接字符串……
[/Quote]
非常有用，谢谢！
吉他猪 2012-08-17
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额，给你个标准的列子，gson你可以去http://code.google.com/p/google-gson/ 下载，可以在java object和json相互转换的我觉得还可以比较方便
People 类这个你自己定义下吧，
配置就很简单了
前台的解析不用说了吧 和你上面自己的一样解析 通过gson你可以直接将数组直接转成json 当然上面也说了object和json的相互转换 你最好是结合hibernate查询直接查出实体对象直接将其转成json 返回给客户端
package com.xiaobao.action.json;
import java.io.PrintWriter;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts2.ServletActionContext;
import com.google.gson.Gson;
import com.opensymphony.xwork2.ActionSupport;
import com.xiaobao.domain.People;
public class GetJsonAction extends ActionSupport
{
private String name;
public String getName()
{
return name;
}
public void setName(String name)
{
this.name = name;
}
@Override
public String execute() throws Exception
{
People people = new People();
people.setId(1);
people.setName(name);
people.setAge(20);
people.setAddress("yichang");
Gson gson = new Gson();
String result = gson.toJson(people);
HttpServletResponse response = ServletActionContext.getResponse();
response.setContentType("application/json; charset=utf-8");
response.setHeader("cache-control", "no-cache");
PrintWriter out = response.getWriter();
out.print(result);
out.flush();
out.close();
return null;
}
}
People 类这个你自己定义下吧，
配置就很简单了
<action name="getJsonAction" class="com.xiaobao.action.json.GetJsonAction">
</action>
前台的解析不用说了吧 和你上面自己的一样解析 通过gson你可以直接将数组直接转成json 当然上面也说了object和json的相互转换 你最好是结合hibernate查询直接查出实体对象直接将其转成json 返回给客户端
jim-single 2012-08-17
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[Quote=引用 9 楼 的回复:]
楼主你是否引入了json用到的插件包 struts2-json-plugin-2.3.4.jar
建议直接使用ajax访问action 通过gson将由hibernate查询到的对象转换成字符串
直接response到客户端就可以了，至于返回值直接返回null,这个歌访问servlet是一样的
看你上面的代码你是拼接字符串来构建json的，也是可以的
[/Quote]
这个包有， 谢谢，
建议直接使用ajax访问action 通过gson将由hibernate查询到的对象转换成字符串
直接response到客户端就可以了，至于返回值直接返回null,这个歌访问servlet是一样的
这个能否给个例子？
楼主你是否引入了json用到的插件包 struts2-json-plugin-2.3.4.jar
建议直接使用ajax访问action 通过gson将由hibernate查询到的对象转换成字符串
直接response到客户端就可以了，至于返回值直接返回null,这个歌访问servlet是一样的
看你上面的代码你是拼接字符串来构建json的，也是可以的
[/Quote]
这个包有， 谢谢，
建议直接使用ajax访问action 通过gson将由hibernate查询到的对象转换成字符串
直接response到客户端就可以了，至于返回值直接返回null,这个歌访问servlet是一样的
这个能否给个例子？
jim-single 2012-08-17
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[Quote=引用 10 楼 的回复:]
看一下，是不是同时有struts2-json-plugin.jar 和 jsonplugin.jar
他们会有冲突。
[/Quote]
jsonplugin.jar 这个包， 我没有加载
现在问题解决了 ，
其他的我没有变，
我就包配置json的那个json 在struts.xml 单独放到一个package 就可以了
<package name="json" extends="struts-default,json-default" >
<!-- 查询所有的 省 直辖市 区 -->
<action name="irjsonProv" class="rjsonActImpl" method="json">
<result type="json">
<!-- 这里指定将被Struts2序列化的属性，该属性在action中必须有对应的getter方法 -->
<param name="root">dataMap</param>
</result>
</action>
</package>
Action .java
public String json() {
// dataMap中的数据将会被Struts2转换成JSON字符串，所以这里要先清空其中的数据
dataMap = new HashMap<String, Object>();
Gajson user = new Gajson();
user.setRname("张三q");
user.setRkind("123q");
user.setRname("张三");
user.setRkind("123");
dataMap.put("user", user);
// 放入一个是否操作成功的标识
dataMap.put("success", true);
// 返回结果
return SUCCESS;
}
参考 这个来的， http://kingxss.iteye.com/blog/1622455
看一下，是不是同时有struts2-json-plugin.jar 和 jsonplugin.jar
他们会有冲突。
[/Quote]
jsonplugin.jar 这个包， 我没有加载
现在问题解决了 ，
其他的我没有变，
我就包配置json的那个json 在struts.xml 单独放到一个package 就可以了
<package name="json" extends="struts-default,json-default" >
<!-- 查询所有的 省 直辖市 区 -->
<action name="irjsonProv" class="rjsonActImpl" method="json">
<result type="json">
<!-- 这里指定将被Struts2序列化的属性，该属性在action中必须有对应的getter方法 -->
<param name="root">dataMap</param>
</result>
</action>
</package>
Action .java
public String json() {
// dataMap中的数据将会被Struts2转换成JSON字符串，所以这里要先清空其中的数据
dataMap = new HashMap<String, Object>();
Gajson user = new Gajson();
user.setRname("张三q");
user.setRkind("123q");
user.setRname("张三");
user.setRkind("123");
dataMap.put("user", user);
// 放入一个是否操作成功的标识
dataMap.put("success", true);
// 返回结果
return SUCCESS;
}
参考 这个来的， http://kingxss.iteye.com/blog/1622455
brightyq 2012-08-17
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看一下，是不是同时有struts2-json-plugin.jar 和 jsonplugin.jar
他们会有冲突。
他们会有冲突。
吉他猪 2012-08-17
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楼主你是否引入了json用到的插件包 struts2-json-plugin-2.3.4.jar
建议直接使用ajax访问action 通过gson将由hibernate查询到的对象转换成字符串
直接response到客户端就可以了，至于返回值直接返回null,这个歌访问servlet是一样的
看你上面的代码你是拼接字符串来构建json的，也是可以的
建议直接使用ajax访问action 通过gson将由hibernate查询到的对象转换成字符串
直接response到客户端就可以了，至于返回值直接返回null,这个歌访问servlet是一样的
看你上面的代码你是拼接字符串来构建json的，也是可以的
jim-single 2012-08-17
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[Quote=引用 5 楼 的回复:]
错误：
Caused by: There is no result type defined for type 'json' mapped with name 'success'.
在JsonProvince方法中，
return ActionSupport.SUCCESS;
但在action配置中，result并没有配置SUCCESS
XML code
<acti……
[/Quote]
<action name="irjsonProv" class="rjsonActImpl" method="JsonProvince">
<result name="success" type="json"></result>
</action>
我这样配置也出错， 我试过了，
错误：
Caused by: There is no result type defined for type 'json' mapped with name 'success'.
在JsonProvince方法中，
return ActionSupport.SUCCESS;
但在action配置中，result并没有配置SUCCESS
XML code
<acti……
[/Quote]
<action name="irjsonProv" class="rjsonActImpl" method="JsonProvince">
<result name="success" type="json"></result>
</action>
我这样配置也出错， 我试过了，
LucEaspe 2012-08-17
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正解。用json的时候 一般是然后写到respones中，返回空[Quote=引用 5 楼 的回复:]
错误：
Caused by: There is no result type defined for type 'json' mapped with name 'success'.
在JsonProvince方法中，
return ActionSupport.SUCCESS;
但在action配置中，result并没有配置SUCCESS
XML code
<acti……
[/Quote]
错误：
Caused by: There is no result type defined for type 'json' mapped with name 'success'.
在JsonProvince方法中，
return ActionSupport.SUCCESS;
但在action配置中，result并没有配置SUCCESS
XML code
<acti……
[/Quote]
brightyq 2012-08-17
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错了，应该是name
<action name="irjsonProv" class="rjsonActImpl" method="JsonProvince">
<result name="success">xxx</result>
</action>
<action name="irjsonProv" class="rjsonActImpl" method="JsonProvince">
<result name="success">xxx</result>
</action>
brightyq 2012-08-17
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错误：
Caused by: There is no result type defined for type 'json' mapped with name 'success'.
在JsonProvince方法中，
return ActionSupport.SUCCESS;
但在action配置中，result并没有配置SUCCESS
另外，return ActionSupport.ERROR;对应的result type=error的也没有。
Caused by: There is no result type defined for type 'json' mapped with name 'success'.
在JsonProvince方法中，
return ActionSupport.SUCCESS;
但在action配置中，result并没有配置SUCCESS
<action name="irjsonProv" class="rjsonActImpl" method="JsonProvince">
<result type="json"></result>
</action>另外，return ActionSupport.ERROR;对应的result type=error的也没有。
渭水飞熊 2012-08-17
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关于Struts配置的问题，希望楼主看下以下两篇文章：http://kingxss.iteye.com/blog/1622455 http://www.vijun.com/web/struts/2012/02/5f84f4d9355071010135650850770098.html，另外你返回的json串应该不需要你自己转换，Struts插件已经帮你转换了，而且即使要手动转换也不要这样拼接字符串，用线程的开源框架就能搞定，引入几个jar包就行了。希望以上说的能帮上楼主。
