Struts2.0 表单中用到select标签提交时出错
在表单用中到了select标签，页面初始化时一切正常，select也正常初始化
可是当我提交时就出现如下错误：
严重: Servlet.service() for servlet jsp threw exception
tag 'select', field 'list', name 'functions.typeId': The requested list key '%{types}' could not be resolved as a collection/array/map/enumeration/iterator type. Example: people or people.{name} - [unknown location]
在应用中我用到两个Action,两个jsp页面
一个FunctionsAction，一个FunctionstypeAction
一个add_function.jsp,一个add_functions_success.jsp
具休流程是我从FunctionstypeAction中获取一个functionstypes的List
用来初始化add_function.jsp中的select标签，
然后把表单提交给FunctionsAction中的insert方法
add_function.jsp初始化是正常的，
但是点提交到FunctionsAction的时候页面空白
我看了一下源文件，页面只执行了一部分，
代码如下：
下面列出Action,xml配置和jsp页面的代码
FunctionsAction:
FunctionstypeAction:
struts.xml --->>>其中用到的Action我都在Spring中配置过了
add_function.jsp: --->>>就这个页面害我两天没睡好觉
add_function_success.jsp: --->>>这个页面很简单，个人认为错误不会出在这里，呵呵
我现在的感觉是List是不是只能从同一个Action中调出,也只能提交到同一个Action????
可是当我提交时就出现如下错误：
严重: Servlet.service() for servlet jsp threw exception
tag 'select', field 'list', name 'functions.typeId': The requested list key '%{types}' could not be resolved as a collection/array/map/enumeration/iterator type. Example: people or people.{name} - [unknown location]
在应用中我用到两个Action,两个jsp页面
一个FunctionsAction，一个FunctionstypeAction
一个add_function.jsp,一个add_functions_success.jsp
具休流程是我从FunctionstypeAction中获取一个functionstypes的List
用来初始化add_function.jsp中的select标签，
然后把表单提交给FunctionsAction中的insert方法
add_function.jsp初始化是正常的，
但是点提交到FunctionsAction的时候页面空白
我看了一下源文件，页面只执行了一部分，
代码如下：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>首页</title> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> </head> <body style="text-align:center;"> <form id="insertFunction" onsubmit="return true;" action="insertFunction.action" method="post"> <table class="wwFormTable">
下面列出Action,xml配置和jsp页面的代码
FunctionsAction:
package com.mp.job.baseinfo.action;
import java.util.List;
import com.mp.job.baseinfo.service.IFunctionsService;
import com.mp.job.baseinfo.vo.Functions;
import com.mp.job.common.service.JobActionSupport;
import com.mp.job.exception.BaseException;
import com.mp.job.util.Pager;
@SuppressWarnings("serial")
public class FunctionsAction extends JobActionSupport {
private IFunctionsService functionsService;
private Functions functions;
private List functionsRecords;
@SuppressWarnings("unused")
private Object[][] params;
private Pager pager;
<!-- getter和setter这里省略！ -->
public String insert()throws BaseException{
try{
functionsService.save(functions);
}catch(Exception e){
e.toString();
addActionMessage("插入数据时出现异常！");
return INPUT;
}
return SUCCESS;
}
<!-- 其他的方法省略 -->
}
FunctionstypeAction:
package com.mp.job.baseinfo.action;
import java.util.List;
import com.mp.job.baseinfo.service.IFunctionstypeService;
import com.mp.job.baseinfo.vo.Functionstype;
import com.mp.job.common.service.JobActionSupport;
import com.mp.job.exception.BaseException;
import com.mp.job.util.Pager;
@SuppressWarnings("serial")
public class FunctionstypeAction extends JobActionSupport {
private IFunctionstypeService functionstypeService;
private Functionstype functionstype;
private List functionstypes;
private List functionstypeRecords;
@SuppressWarnings("unused")
private Object[][] params;
private Pager pager;
<!-- getter和setter这里省略！ -->
@SuppressWarnings("unchecked")
public String getAllFunctionstypes()throws BaseException{
functionstypes = functionstypeService.findAll();
return null;
}
<!-- 其他方法这里省略！ -->
public List getFunctionstypes() {
return functionstypes;
}
public void setFunctionstypes(List functionstypes) {
this.functionstypes = functionstypes;
}
}
struts.xml --->>>其中用到的Action我都在Spring中配置过了
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"> <struts> <!-- ================================================================== --> <!-- 名称相关functionsAction --> <!-- ================================================================== --> <package name="functions" namespace="/admin/BaseInfo" extends="struts-default"> <action name="insertFunction" class="functionsAction" method="insert"> <result name="success">search_Functions.jsp</result> <result name="input">add_function.jsp</result> </action> <!-- 其他配置省略 --> </package> <!-- ================================================================== --> <!-- 类型相关Action --> <!-- ================================================================== --> <package name="functionstype" namespace="/admin/BaseInfo" extends="struts-default"> <action name="getAllFunctionstypes" class="functionstypeAction" method="getAllFunctionstypes"> </action> <!-- 其他配置省略 --> </package> </struts>
add_function.jsp: --->>>就这个页面害我两天没睡好觉
<%@page language="java" pageEncoding="utf-8"%>
<%@taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>首页</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
</head>
<body style="text-align:center;">
<s:actionmessage />
<s:action name="getAllFunctionstypes" id="getAllFunctionstypes" />
<s:set name="types" value="#getAllFunctionstypes.functionstypes"/>
<s:form action="insertFunction.action" method="post">
<s:select list="%{types}"
listKey="id"
listValue="name"
name="functions.typeId"
label="类型"/>
<s:textfield name="functions.name" label="名称"/>
<s:submit value="添加"/>
</s:form>
<hr/>
</body>
</html>
add_function_success.jsp: --->>>这个页面很简单，个人认为错误不会出在这里，呵呵
<%@page language="java" pageEncoding="utf-8"%> <%@taglib prefix="s" uri="/struts-tags"%> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>首页</title> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> </head> <body style="text-align:center;"> <table width="350px" height="150px" align="center" bgcolor="#ffff00"> <tr><td style="color:#00ff00;"><b>成功添加数据！</b><br/><br/> <a href="add_function.jsp">继续添加</a> <a href="listAllFunctions.action">查看全部</a> </td></tr> </table> </body> </html>
我现在的感觉是List是不是只能从同一个Action中调出,也只能提交到同一个Action????