從Servlet發送和接收JSON數據

Question

如何將JSON數據發送到我的Servlet的doPost()方法並接收回來？我有一個生成和使用JSON的Web服務。

Answer 1

使用傳遞給你的doPost方法在servlet

public class ExampServlet extends HttpServlet { 
    public void doPost(HttpServletRequest request,HttpServletResponse response)throws ServletException, IOException 
    { 
    // to accept the json data 

    String jsonData = request.getParameter("json"); 

    // to send out the json data 

    response.setContentType("application/json"); 
    PrintWriter out = response.getWriter(); 
    out.println(jsonData) ; 
    out.close()/
    }