发送JSON数据的Servlet Applet的通信例子 [英] Sending JSON data Servlet Applet communication example

问题描述

喜正在开发中的servlet需要发送数据（数据库来）到小程序的应用程序我已经休耕本链接

Hi am developing an application in which servlet has to send data(coming from database) to applet i have fallowed this link

这是非常有用的，但他们提到传递数据通过JSON任何一个可以举这样一个例子。我试过对象的序列化，但我得到
java.io.EOFException
异常（我搜索解决方案，有人说这可能是JVM版本小姐比赛导致这一点），所以我决定去JSON。

it is very useful but they mentioned passing data through JSON can any one give an example of this. I tried serialization of object but am getting java.io.EOFException exception (i searched for solution some one says that may be JVM version miss match lead this) so i decided to go for JSON.

推荐答案

如果您要创建或读取JSON字符串，那么我建议你使用的谷歌的GSON 。

if you are going to create or read json strings, then I'd recommend using Google's Gson.

要发送从servlet的JSON响应做到这一点：

To send a json response from the servlet do this:

response.setContentType("application/json");
response.setCharacterEncoding("UTF-8");
        PrintWriter writer = null;
        try {
            writer = response.getWriter();
            writer.write(json);
        } finally {
            writer.close();
        }

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