ajax传输json数据格式以及规范

（1）

示例：

在JsonServlet中的代码：
import java.io.IOException;
import java.io.PrintWriter;


import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;


/**
 * Servlet implementation class JsonServlet
 */
@WebServlet("/JsonServlet")
public class JsonServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public JsonServlet() {
        super();
        // TODO Auto-generated constructor stub
    }


/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

doGet(request, response);
}


/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setCharacterEncoding("utf-8");
PrintWriter out=response.getWriter();
String str="{";
//在双引号中再次添加双引号时要用\"来表示
str+="\"stud\":[";
str+="{\"studid\":\"1001\",\"studname\":\"张三\",\"age\":\"20\"}, ";
str+="{\"studid\":\"1002\",\"studname\":\"李四\",\"age\":\"30\"}, ";
str+="{\"studid\":\"1003\",\"studname\":\"王五\",\"age\":\"10\"} ";
str+="]";
str+="}";
//上述以str开头的这几行代码在数据多时会很麻烦，所以在实际开发中会引入专门的jar包进行处理
System.out.println(str);
out.println("str");
out.flush();
out.close();


}

}

在jsp中的代码

   




 

接受json数据

 
   
     
       
           
           
           
       
     
     
    
   

学号	姓名	年龄

  
       

       
       
       
    

结果如下图：

注意：下面代码是通过引用jar进行更简便的写法，这里没用数据库，所以又建了一个StudentVo类，