首页 > 代码库 > 关于Json在SSh框架中出现的问题
关于Json在SSh框架中出现的问题
异常信息:
10:13:48,540 DEBUG JSONUtil:72 - [JSON]{"exception":{"cause":{"cause":{"cause":{"cause":{"cause":{"cause":{"cause":
{"cause":null,"localizedMessage":"
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,{"className":"com.opensymphony.xwork2.interceptor.MethodFilterInterceptor","fileName":"MethodFilterInterceptor.java","lineNumber":98,"methodName":"intercept","nativeMethod":false}
,{"className":"com.opensymphony.xwork2.DefaultActionInvocation","fileName":"DefaultActionInvocation.java","lineNumber":246,"methodName":"invoke","nativeMethod":false},
{"className":"com.opensymphony.xwork2.interceptor.I18nInterceptor","fileName":"I18nInterceptor.java","lineNumber":139,"methodName":"intercept","nativeMethod":false},
{"className":"com.opensymphony.xwork2.DefaultActionInvocation","fileName":"DefaultActionInvocation.java","lineNumber":246,"methodName":"invoke","nativeMethod":false},
{"className":"org.apache.struts2.interceptor.ServletConfigInterceptor","fileName":"ServletConfigInterceptor.java","lineNumber":164,"methodName":"intercept","nativeMethod":false},
{"className":"com.opensymphony.xwork2.DefaultActionInvocation","fileName":"DefaultActionInvocation.java","lineNumber":246,"methodName":"invoke","nativeMethod":false},
{"className":"com.opensymphony.xwork2.interceptor.AliasInterceptor","fileName":"AliasInterceptor.java","lineNumber":193,"methodName":"intercept","nativeMethod":false},
{"className":"com.opensymphony.xwork2.DefaultActionInvocation","fileName":"DefaultActionInvocation.java","lineNumber":246,"methodName":"invoke","nativeMethod":false},
{"className":"com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor","fileName":"ExceptionMappingInterceptor.java","lineNumber":189,"methodName":"intercept","nativeMethod":false},
{"className":"com.opensymphony.xwork2.DefaultActionInvocation","fileName":"DefaultActionInvocation.java","lineNumber":246,"methodName":"invoke","nativeMethod":false},
{"className":"org.apache.struts2.impl.StrutsActionProxy","fileName":"StrutsActionProxy.java","lineNumber":54,"methodName":"execute","nativeMethod":false},
{"className":"org.apache.struts2.dispatcher.Dispatcher","fileName":"Dispatcher.java","lineNumber":562,"methodName":"serviceAction","nativeMethod":false},
{"className":"org.apache.struts2.dispatcher.ng.ExecuteOperations","fileName":"ExecuteOperations.java","lineNumber":77,"methodName":"executeAction","nativeMethod":false},
{"className":"org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter","fileName":"StrutsPrepareAndExecuteFilter.java","lineNumber":99,"methodName":"doFilter","nativeMethod":false},
{"className":"org.apache.catalina.core.ApplicationFilterChain","fileName":"ApplicationFilterChain.java","lineNumber":241,"methodName":"internalDoFilter","nativeMethod":false},
{"className":"org.apache.catalina.core.ApplicationFilterChain","fileName":"ApplicationFilterChain.java","lineNumber":208,"methodName":"doFilter","nativeMethod":false},
{"className":"org.apache.catalina.core.StandardWrapperValve","fileName":"StandardWrapperValve.java","lineNumber":220,"methodName":"invoke","nativeMethod":false},
{"className":"org.apache.catalina.core.StandardContextValve","fileName":"StandardContextValve.java","lineNumber":122,"methodName":"invoke","nativeMethod":false},
{"className":"org.apache.catalina.authenticator.AuthenticatorBase","fileName":"AuthenticatorBase.java","lineNumber":501,"methodName":"invoke","nativeMethod":false},
{"className":"org.apache.catalina.core.StandardHostValve","fileName":"StandardHostValve.java","lineNumber":171,"methodName":"invoke","nativeMethod":false},
{"className":"org.apache.catalina.valves.ErrorReportValve","fileName":"ErrorReportValve.java","lineNumber":102,"methodName":"invoke","nativeMethod":false},
{"className":"org.apache.catalina.valves.AccessLogValve","fileName":"AccessLogValve.java","lineNumber":950,"methodName":"invoke","nativeMethod":false},
{"className":"org.apache.catalina.core.StandardEngineValve","fileName":"StandardEngineValve.java","lineNumber":116,"methodName":"invoke","nativeMethod":false},
{"className":"org.apache.catalina.connector.CoyoteAdapter","fileName":"CoyoteAdapter.java","lineNumber":408,"methodName":"service","nativeMethod":false},
{"className":"org.apache.coyote.http11.AbstractHttp11Processor","fileName":"AbstractHttp11Processor.java","lineNumber":1040,"methodName":"process","nativeMethod":false},
{"className":"org.apache.coyote.AbstractProtocol$AbstractConnectionHandler","fileName":"AbstractProtocol.java","lineNumber":607,"methodName":"process","nativeMethod":false},
{"className":"org.apache.tomcat.util.net.AprEndpoint$SocketProcessor","fileName":"AprEndpoint.java","lineNumber":2442,"methodName":"doRun","nativeMethod":false}
,{"className":"org.apache.tomcat.util.net.AprEndpoint$SocketProcessor","fileName":"AprEndpoint.java","lineNumber":2431,"methodName":"run","nativeMethod":false},
{"className":"java.util.concurrent.ThreadPoolExecutor$Worker","fileName":"ThreadPoolExecutor.java","lineNumber":895,"methodName":"runTask","nativeMethod":false},
{"className":"java.util.concurrent.ThreadPoolExecutor$Worker","fileName":"ThreadPoolExecutor.java","lineNumber":918,"methodName":"run","nativeMethod":false},
{"className":"org.apache.tomcat.util.threads.TaskThread$WrappingRunnable","fileName":"TaskThread.java","lineNumber":61,"methodName":"run","nativeMethod":false},
{"className":"java.lang.Thread","fileName":"Thread.java","lineNumber":662,"methodName":"run","nativeMethod":false}],
"targetException":{"cause":null,"localizedMessage":"Dialect does not support identity key generation","message":"Dialect does not support identity key generation",
"stackTrace":[{"className":"org.hibernate.dialect.Dialect","fileName":"Dialect.java","lineNumber":549,"methodName":"getIdentitySelectString","nativeMethod":false},
{"className":"org.hibernate.dialect.Dialect","fileName":"Dialect.java","lineNumber":538,"methodName":"getIdentitySelectString","nativeMethod":false},
{"className":"org.hibernate.persister.entity.AbstractEntityPersister","fileName":"AbstractEntityPersister.java","lineNumber":2181,"methodName":"getIdentitySelectString","nativeMethod":false},
{"className":"sun.reflect.NativeMethodAccessorImpl","fileName":"NativeMethodAccessorImpl.java","lineNumber":-2,"methodName":"invoke0","nativeMethod":true},
{"className":"sun.reflect.NativeMethodAccessorImpl","fileName":"NativeMethodAccessorImpl.java","lineNumber":39,"methodName":"invoke","nativeMethod":false}
,{"className":"sun.reflect.DelegatingMethodAccessorImpl","fileName":"DelegatingMethodAccessorImpl.java","lineNumber":25,"methodName":"invoke","nativeMethod":false},
{"className":"java.lang.reflect.Method","fileName":"Method.java","lineNumber":597,"methodName":"invoke","nativeMethod":false},
{"className":"org.apache.struts2.json.JSONWriter","fileName":"JSONWriter.java","lineNumber":226,"methodName":"bean","nativeMethod":false},
{"className":"org.apache.struts2.json.JSONWriter","fileName":"JSONWriter.java","lineNumber":178,"methodName":"processCustom","nativeMethod":false}
,{"className":"org.apache.struts2.json.JSONWriter","fileName":"JSONWriter.java","lineNumber":168,"methodName":"process","nativeMethod":false}
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{"className":"org.apache.struts2.json.JSONWriter","fileName":"JSONWriter.java","lineNumber":436,"methodName":"map","nativeMethod":false},
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{"className":"org.apache.struts2.json.JSONWriter","fileName":"JSONWriter.java","lineNumber":390,"methodName":"add","nativeMethod":false}
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{"className":"org.apache.struts2.json.JSONWriter","fileName":"JSONWriter.java","lineNumber":168,"methodName":"process","nativeMethod":false},
{"className":"org.apache.struts2.json.JSONWriter","fileName":"JSONWriter.java","lineNumber":134,"methodName":"value","nativeMethod":false}
,{"className":"org.apache.struts2.json.JSONWriter","fileName":"JSONWriter.java","lineNumber":390,"methodName":"add","nativeMethod":false},
{"{"className":"org.apache.struts2.json.JSONWriter","fileName":"JSONWriter.java","lineNumber":134,"methodName":"value","nativeMethod":false},
{"className":"org.apache.struts2.json.JSONWriter","fileName":"JSONWriter.java","lineNumber":390,"methodName":"add","nativeMethod":false},
{"className":"org.apache.struts2.json.JSONWriter","fileName":"JSONWriter.java","lineNumber":231,"methodName":"bean","nativeMethod":false}
,{"className":"org.apache.struts2.json.JSONWriter","fileName":"JSONWriter.java","lineNumber":178,"methodName":"processCustom","nativeMethod":false},
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{"className":"org.apache.struts2.json.JSONUtil","fileName":"JSONUtil.java","lineNumber":116,"methodName":"serialize","nativeMethod":false},
{"className":"org.apache.struts2.json.JSONResult","fileName":"JSONResult.java","lineNumber":202,"methodName":"createJSONString","nativeMethod":false},
{"className":"org.apache.struts2.json.JSONResult","fileName":"JSONResult.java","lineNumber":176,"methodName":"execute","nativeMethod":false},
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{"className":"org.apache.struts2.interceptor.DeprecationInterceptor","fileName":"DeprecationInterceptor.java","lineNumber":41,"methodName":"intercept","nativeMethod":false},
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{"className":"org.apache.struts2.interceptor.debugging.DebuggingInterceptor","fileName":"DebuggingInterceptor.java","lineNumber":256,"methodName":"intercept","nativeMethod":false},
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{"className":"com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor","fileName":"DefaultWorkflowInterceptor.java","lineNumber":167,"methodName":"doIntercept","nativeMethod":false}
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{"className":"com.opensymphony.xwork2.interceptor.StaticParametersInterceptor","fileName":"StaticParametersInterceptor.java","lineNumber":191,"methodName":"intercept","nativeMethod":false}
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{"className":"org.apache.catalina.connector.CoyoteAdapter","fileName":"CoyoteAdapter.java","lineNumber":408,"methodName":"service","nativeMethod":false},{"className":"org.apache.coyote.http11.AbstractHttp11Processor","fileName":"AbstractHttp11Processor.java","lineNumber":1040,"methodName":"process","nativeMethod":false},{"className":"org.apache.coyote.AbstractProtocol$AbstractConnectionHandler","fileName":"AbstractProtocol.java","lineNumber":607,"methodName":"process","nativeMethod":false},{"className":"org.apache.tomcat.util.net.AprEndpoint$SocketProcessor","fileName":"AprEndpoint.java","lineNumber":2442,"methodName":"doRun","nativeMethod":false},{"className":"org.apache.tomcat.util.net.AprEndpoint$SocketProcessor","fileName":"AprEndpoint.java","lineNumber":2431,"methodName":"run","nativeMethod":false},{"className":"java.util.concurrent.ThreadPoolExecutor$Worker","fileName":"ThreadPoolExecutor.java","lineNumber":895,"methodName":"runTask","nativeMethod":false},{"className":"java.util.concurrent.ThreadPoolExecutor$Worker","fileName":"ThreadPoolExecutor.java","lineNumber":918,"methodName":"run","nativeMethod":false},{"className":"org.apache.tomcat.util.threads.TaskThread$WrappingRunnable","fileName":"TaskThread.java","lineNumber":61,"methodName":"run","nativeMethod":false},{"className":"java.lang.Thread","fileName":"Thread.java","lineNumber":662,"methodName":"run","nativeMethod":false}]},"localizedMessage":"org.apache.struts2.json.JSONException: java.lang.reflect.InvocationTargetException","message":"org.apache.struts2.json.JSONException: java.lang.reflect.InvocationTargetException",以上是异常信息
-------------------------------------------------------------------------------------------------------
<script type="text/javascript" src="http://www.mamicode.com/js/jquery-1.7.2.js"></script>
<script type="text/javascript" >
$(function(){
$("#rname").blur(function(){
var rname=$(this).val();
$.ajax({
url:"user/checkname",
data:"rname="+rname,
type:"post",
dataType:"text",
success:function(data){
$("#span1").html($.parseJSON(data).msg);
},
error:function(msg){
$("#span1").html($.parseJSON(data).msg);
}
});
});
} );
</script>上面为前端jsp页面Json数据的传输和接收
--------------------------------------------------------
public class UsersAction extends ActionSupport{
private UsersService ;
private Users ;
private int ;
Map<String,Object> session=ActionContext.getContext().getSession();
private String rname;
private String ;
public String checkname() {
int i=us.findName(rname);
if(i==1){
msg="用户名已经存在";
return "success";
}else{
msg="用户名正确";
return "error"; } }
public UsersService getUs() {
return us; }
public void setUs(UsersService us) {
this.us = us; }
public Users getUsers() {
return users; }
public void setUsers(Users users) {
this.users = users; }
public int getPermission() {
return permission; }
public void setPermission(int permission) {
this.permission = permission; }
public String getRname() {
return rname; }
public void setRname(String rname) {
this.rname = rname; }
public String getMsg() {
return msg; }
public void setMsg(String msg) {
this.msg = msg;
}
}简单的将实现的验证Action后台的数据粘在这里,具体的就不多复制
--------------------------------------------------------
struts的配置文件内容:
<action name="checkname" class="action.UsersAction" method="checkname"> <result name="success" type="json"> </result> <result name="error" type="json"></result> <interceptor-ref name="defaultStack"></interceptor-ref> </action>
打算获取文件所有的属性的值
------------------------------------------------------
实体类的配置文件:
<hibernate-mapping package="entity"> <class name="entity.Users" schema="SCOTT" table="USER1"> <id name="id" type="java.lang.Integer"> <generator > </generator> </id> //其他配置省略
使用的<generator class="assigned"></generator>属性为assigned
开始查找以为是实体类配置问题,按网上有的说法是:<generator class="assigned"/>中的assigned为identity 可是检查半天也不是,而且配置方言也没有问题,怀疑过是否是dao的底层实现类造成的,用debug跟半天也没发现异常出现,一直执行到action返回"success"后,myEclipse出现死机,猛然蹦出开头复制的异常.据此推测就是struts2的配置出现的问题,后来更改的:
<action name="checkname" class="action.UsersAction" method="checkname"> <result name="success" type="json"> </result> <result name="error" type="json"> </result> <interceptor-ref name="defaultStack"></interceptor-ref> </action>
将里面的参数进行细化加上了name="includeProperties"可以获取msg的值,单个获取us,users,rname,permission均可以将其传到前端的jsp页面 但是整体获得却不可以
由此可见对于获取特定的信息时明确所获得的数据进行限制
本文出自 “channyb” 博客，请务必保留此出处http://12298162.blog.51cto.com/12288162/1875694
关于Json在SSh框架中出现的问题
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