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SpringMVC form表单提交list对象集合

2016-12-29 15:11 531 查看

form表单页面

<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>

<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>

<c:set var="ctx" value="<%=request.getContextPath()%>" />

<html>

<head>

<title></title>

</head>

<body>

<form id="form" action="${ctx }/list/aaa" method="post">

<%--<input type="text" name="user[0].userName" value="jobs"/>--%>

<%--<input type="text" name="user[0].password" value="55"/><br/>--%>

<%--<input type="text" name="user[1].userName" value="jim"/>--%>

<%--<input type="text" name="user[1].password" value="21"/><br/>--%>

<%--<%! int m = 0; %>--%>

<c:forEach items="${users}" var="user" varStatus="i">

<%--users[${i.index}]--%>

<input type="text" name="users[${i.index}].id" value="${user.id}"/><br/>

<input type="text" name="users[${i.index}].name" value="${user.name}"/><br/>

<input type="text" name="users[${i.index}].password" value="${user.password}"/><br/>

<c:forEach items="${user.roses}" var="role" varStatus="j">

<input type="hidden" name="roles[${i.index}].index" value="${i.index}"/>

<input type="hidden" name="roles[${i.index}].id" value="${role.id}"/>

    <input type="text" name="roles[${i.index}].roleId" value="${role.roleId}"><br/>

    <input type="text" name="roles[${i.index}].rolename" value="${role.rolename}"><br/>

<%--<input type="hidden" name="roles[<%=m%>].id" value="${i.index}"/>--%>

<%--    <input type="text" name="roles[<%=m%>].roleId" value="${role.roleId}"><br/>--%>

<%--    <input type="text" name="roles[<%=m%>].rolename" value="${role.rolename}"><br/>--%>

<%--<% m++; %>--%>

</c:forEach>

</c:forEach>

<button onclick="submit()">提交</button>

</form>

</body>

</html>

controller接收数据格式

javabean对象

public class User {

private Integer id;

private String name;

private String password;

private List<Role> roses;

public Integer getId() {

return id;

}

public void setId(Integer id) {

this.id = id;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public String getPassword() {

return password;

}

public void setPassword(String password) {

this.password = password;

}

public List<Role> getRoses() {

return roses;

}

public void setRoses(List<Role> roses) {

this.roses = roses;

}

}

public class Roles {

private Integer[] roleId;

private Integer[] id;

private String[] rolename;

private Integer[] index;

public Integer[] getRoleId() {

return roleId;

}

public void setRoleId(Integer[] roleId) {

this.roleId = roleId;

}

public Integer[] getId() {

return id;

}

public void setId(Integer[] id) {

this.id = id;

}

public String[] getRolename() {

return rolename;

}

public void setRolename(String[] rolename) {

this.rolename = rolename;

}

public Integer[] getIndex() {

return index;

}

public void setIndex(Integer[] index) {

this.index = index;

}

}

form表单提交的list集合转换的对象

public class Person {

private List<User> users;

private List<Roles> roles;

public List<User> getUsers() {

return users;

}

public void setUsers(List<User> users) {

this.users = users;

}

public List<Roles> getRoles() {

return roles;

}

public void setRoles(List<Roles> roles) {

this.roles = roles;

}

}

contoller

import com.fasterxml.jackson.core.JsonProcessingException;

import com.fasterxml.jackson.databind.ObjectMapper;

import org.springframework.stereotype.Controller;

import org.springframework.ui.ModelMap;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;

import java.io.DataOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.util.ArrayList;

import java.util.List;

/**

* Created by Administrator on 2016-12-22.

*/

@Controller

@RequestMapping("/list")

public class FormListController {

@RequestMapping("/getjsp")

public ModelAndView jsp(ModelMap view){

List<User> users = new ArrayList<User>();

User user1 = new User();

user1.setId(1);

user1.setName("aaa");

user1.setPassword("111");

List<Role> roles = new ArrayList<Role>();

Role role1 = new Role();

role1.setId(1);

role1.setRoleId(1);

role1.setRolename("qqq");

Role role2 = new Role();

role2.setId(1);

role2.setRoleId(2);

role2.setRolename("www");

roles.add(role1);

roles.add(role2);

user1.setRoses(roles);

User user2 = new User();

user2.setId(2);

user2.setName("bbb");

user2.setPassword("222");

List<Role> roles1 = new ArrayList<Role>();

Role role3 = new Role();

role3.setId(2);

role3.setRoleId(3);

role3.setRolename("eee");

Role role4 = new Role();

role4.setId(2);

role4.setRoleId(4);

role4.setRolename("rrr");

roles1.add(role3);

roles1.add(role4);

user2.setRoses(roles1);

users.add(user1);

users.add(user2);

view.put("users", users);

try {

System.out.println(new ObjectMapper().writeValueAsString(users));

} catch (JsonProcessingException e) {

e.printStackTrace();

}

return new ModelAndView("test/list");

}



@RequestMapping(value = "/aaa")

public String aaa(Person users){

System.out.println("11111");

try {

List<User> userList = users.getUsers();

for(int i=0; i<userList.size(); i++){

Roles roles = users.getRoles().get(i);

List<Role> roleList = new ArrayList<Role>();

for(int j=0; j<roles.getId().length; j++){

Role role = new Role();

role.setId(roles.getId()[j]);

role.setRoleId(roles.getRoleId()[j]);

role.setRolename(roles.getRolename()[j]);

roleList.add(role);

}

userList.get(i).setRoses(roleList);

}

System.out.println(new ObjectMapper().writeValueAsString(users.getUsers()));

} catch (JsonProcessingException e) {

e.printStackTrace();

}

return null;

}

}

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