配置文件和由Mybatis逆向工程生成了相关的代码见 登录实现
关键的是在Controller层的方法上加入@ResponseBody注解实现json格式
在控制台输出的json格式数据
index.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%><%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 ‘test.jsp‘ starting page</title> ????????<% ???????pageContext.setAttribute("APP_PATH",request.getContextPath()); ????%> ???<script type="text/javascript" src="${APP_PATH}/static/js/jquery-3.2.1.min.js"></script> ???<link rel="stylesheet" type="text/css" href="${APP_PATH}/static/bootstrap-3.3.7-dist/css/bootstrap.min.css"> ???<script type="text/javascript" src="${APP_PATH}/static/bootstrap-3.3.7-dist/js/bootstrap.min.js"></script> ?</head> ???<body> ???<button id="button">获取数据</button> ????</body> ?<script> ?var name=$("#name").val(); ?var password=$("#password").val(); ???????????$("#button").click(function(){ ?????????????$.ajax({ ?????????????????url:"${APP_PATH}/depts", ?????????????????success:function(result){ ?????????????????????console.log(result); ?????????????????????console.log(result.length); ?????????????????????} ??????????????????}); ?????????}); ???????????????????</script></html>DepartmentController.java
package com.ssm.controller;import java.util.List;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.ResponseBody;import com.ssm.bean.Department;import com.ssm.service.DepartmentService;@Controllerpublic class DepartmentController { ???????????????@Autowired ???????DepartmentService departmentService; ???????????????@RequestMapping("/depts") ???????@ResponseBody ???????public List<Department> getAllDept(){ ???????????????????????List<Department> list = departmentService.getDepts(); ???????????return list; ???????????????????} ???????}DepartmentService.java
package com.ssm.service;import java.util.List;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Service;import com.ssm.bean.Department;import com.ssm.dao.DepartmentMapper;@Servicepublic class DepartmentService { ???????@Autowired ???DepartmentMapper departmentMapper; ???????public List<Department> getDepts() { ???????????????return departmentMapper.selectByExample(null); ???}}SSM框架以json格式传给前端页面
原文地址：https://www.cnblogs.com/liurg/p/8302811.html