一、导入jar包
1.jackson-annotations-2.1.5.jar
2.jackson-core-2.1.5.jar
3.jackson-databind-2.1.5.jar
4.commons-logging-1.1.1.jar
5.spring-aop-4.0.0.RELEASE.jar
6.spring-beans-4.0.0.RELEASE.jar
7.spring-context-4.0.0.RELEASE.jar
8.spring-core-4.0.0.RELEASE.jar
9.spring-expression-4.0.0.RELEASE.jar
10.spring-web-4.0.0.RELEASE.jar
11.spring-webmvc-4.0.0.RELEASE.jar
12.taglibs-standard-impl-1.2.1.jar
13.taglibs-standard-spec-1.2.1.jar
二、前端代码
注：通过AJAX方式请求
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<script type="text/javascript" src="js/jquery-3.4.1.min.js"></script>
<script type="text/javascript">
$(function(){
var $div=$("#d");
$("a").click(function(){
$.getJSON("getJsonObject",null,function(result){
for(var i=0;i<result.length;i++){
$div.append("<h2>"+result[i].id+"</h2>");
}
});
return false;
});
});
</script>
</head>
<body>
<div align="center">
<a href="getJsonObject" target="_blank" rel="external nofollow" >获取Json对象</a>
</div>
<div align="center" id="d"></div>
</body>
</html>
三、后端代码
import java.util.Collection;
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.atguigu.dao.EmployeeDao;
import com.atguigu.entity.Employee;
@Controller
public class JsonController {
@Autowired
private EmployeeDao employeeDao;
//@ResponseBody该注解作用告诉服务器响应的不是页面，而是JSON格式的文件资源
@ResponseBody
@RequestMapping(value="/getJsonObject")
public Object getJsonObject() {
Collection<Employee> allEmployee = employeeDao.getAll();
return allEmployee;
}
}
四、运行结果
![Json 的三种解析方式Json简介Json的三种解析方式[图]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)