Struts2 在controller里面存了一个list集合，在列表页面可以展示信息，在此页面查询的时候只显示查询条件，其他信息不显示，求解

qq_26333059 2018-12-01 11:22:45

package com.bj.action;

import java.io.ByteArrayInputStream;
import java.util.List;

import org.apache.struts2.ServletActionContext;

import com.bj.pojo.User;
import com.bj.pojo.UserInsert;
import com.bj.service.UserService;
import com.bj.service.impl.UserServiceImpl;
import com.bj.util.ImageCodeUtil;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

public class StudentAction extends ActionSupport{
private User user;
private UserInsert userinsert;
public UserInsert getUserinsert() {
return userinsert;
}

public void setUserinsert(UserInsert userinsert) {
this.userinsert = userinsert;
}

public User getUser() {
return user;
}

public void setUser(User user) {
this.user = user;
}

UserService us=new UserServiceImpl();
public String login(){
ActionContext ac=ActionContext.getContext();
ac.getSession().put("user", user);
ac.getSession().put("loginname",user.getName());
ac.getSession().put("loginpwd",user.getPwd());
ac.getSession().put("loginsex",user.getSex());
ac.getSession().put("logindept",user.getDept());
ac.getSession().put("loginmajorid",user.getMajorid());
ac.getSession().put("loginmajorname",user.getMajorname());
ac.getSession().put("loginroom",user.getRoom());
ac.getSession().put("loginclasses",user.getClasses());
String shenfen=ServletActionContext.getRequest().getParameter("shenfen");
if(shenfen.equals("学生")){
if(us.login(user)){
ac.getSession().put("user", user);
ac.getSession().put("loginname",user.getName());
ac.getSession().put("loginpwd",user.getPwd());
return "stu_success";
}else{
ac.put("stuloginMsg", "学生用户名或者密码错误，登录失败");
return ERROR;
}
}else{
if(us.teaLogin(user)){
return "tea_success";
}else{
ac.put("tealoginMsg", "教师用户名或者密码错误，登录失败");
return ERROR;
}
}

}
public String insert(){
if (us.insert(userinsert)>0){
return SUCCESS;
}else{
return ERROR;
}
}
private static final long serialVersionUID = 1L;
private ByteArrayInputStream inputStream;
public String getImageCode() throws Exception{
//获取图片字符串
String codeStr = ImageCodeUtil.getImageCodeStr();
ActionContext.getContext().getSession().put("rand",codeStr);
//System.out.println(codeStr);
inputStream = ImageCodeUtil.getImageAsInputStream(codeStr);
return SUCCESS;
}

public void setInputStream(ByteArrayInputStream inputStream) {
this.inputStream = inputStream;
}
public ByteArrayInputStream getInputStream() {
return inputStream;
}

public String userList(){
List<UserInsert> list=us.userList();
ActionContext ac=ActionContext.getContext();
if (list.size()>0){
ac.put("list", list);
return SUCCESS;
}else{
ac.getSession().put("errormsg", "没有查询到记录");
return ERROR;
}
}
public String findByAll(){
List<UserInsert> list=us.findByAll(userinsert);
ActionContext ac=ActionContext.getContext();
if (list.size()>0){
ac.put("list", list);
return SUCCESS;
}else{
ac.getSession().put("errormsg", "没有查询到记录");
return ERROR;
}
}
public String showChaxun(){
String oldpwd=ServletActionContext.getRequest().getParameter("oldpwd");
String newpwd=ServletActionContext.getRequest().getParameter("newpwd");
String loginname=(String)ActionContext.getContext().getSession().get("loginname");
String loginpwd=(String)ActionContext.getContext().getSession().get("loginpwd");
User user=new User();
user.setName(loginname);
user.setPwd(oldpwd);
User user1=us.showChaxun(user);
ActionContext ac=ActionContext.getContext();
ac.put("user1", user1);
return SUCCESS;
}
}

jsp页面：

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">

<title>My JSP 'userList.jsp' starting page</title>

<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">

<script type="text/javascript">
function sc(id){
var i=confirm("确认删除吗？");
if(i){
location.href="delete_Action?user.id="+id;
}
}
</script>
</head>

<body>
欢迎${userinsert.name }登录
<s:form action="findByAll_Action">
<s:textfield name="userinsert.name" label="姓名"/>
<s:textfield name="userinsert.sex" label="性别"/>
<s:textfield name="userinsert.dept" label="系别"/>
<s:textfield name="userinsert.majorid" label="专业编号"/>
<s:textfield name="userinsert.majorname" label="专业名称"/>
<s:submit value="查询"/>
<table>
<tr>
<th>序号</th>
<th>姓名</th>
<th>性别</th>
<th>系别</th>
<th>专业编号</th>
<th>专业名称</th>
</tr>
<s:iterator value="list" var="userinsert" status="st">
<s:if test="#st.odd">
<tr style="background-color:pink">
<td><s:property value="id"/></td>
<td>${userinsert.name}</td>
<td>${userinsert.sex}</td>
<td>${userinsert.dept}</td>
<td>${userinsert.majorid}</td>
<td>${userinsert.majorname}</td>
</tr>
</s:if>
<s:else>
<tr style="background-color:#a1fbd0">
<td><s:property value="id"/></td>
<td>${userinsert.name}</td>
<td>${userinsert.sex}</td>
<td>${userinsert.dept}</td>
<td>${userinsert.majorid}</td>
<td>${userinsert.majorname}</td>
</tr>
</s:else>
</s:iterator>
</table>
</s:form>
</body>
</html>

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