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;
@Controller
public 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;
@Service
public class DepartmentService {
@Autowired
DepartmentMapper departmentMapper;
public List<Department> getDepts() {
return departmentMapper.selectByExample(null);
}
}
原文地址：https://www.cnblogs.com/liurg/p/8302811.html
时间： 2024-10-12 13:04:26