在Java中使用JSON的HTTP POST [英] HTTP POST using JSON in Java

问题描述

我想在Java中使用JSON进行简单的HTTP POST。

I would like to make a simple HTTP POST using JSON in Java.

假设网址为 www.site.com

并且它取值 {name：myname，age：20} 例如标记为'details'。

and it takes in the value {"name":"myname","age":"20"} labeled as 'details' for example.

我如何创建POST的语法？

How would I go about creating the syntax for the POST?

我似乎也找不到JSON Javadocs中的POST方法。

I also can't seem to find a POST method in the JSON Javadocs.

推荐答案

以下是您需要做的事情：

Here is what you need to do:

1. 获取Apache HttpClient，这将使您能够发出所需的请求


2. 使用它创建一个HttpPost请求并添加标题application / x-www-form-urlencoded


3. 创建一个将JSON传递给它的StringEntity


4. 执行调用

1. Get the Apache HttpClient, this would enable you to make the required request
2. Create an HttpPost request with it and add the header "application/x-www-form-urlencoded"
3. Create a StringEntity that you will pass JSON to it
4. Execute the call

代码粗略看起来（你仍然需要调试它并让它工作）

The code roughly looks like (you will still need to debug it and make it work)

//Deprecated
//HttpClient httpClient = new DefaultHttpClient(); 

HttpClient httpClient = HttpClientBuilder.create().build(); //Use this instead 

try {

    HttpPost request = new HttpPost("http://yoururl");
    StringEntity params =new StringEntity("details={\"name\":\"myname\",\"age\":\"20\"} ");
    request.addHeader("content-type", "application/x-www-form-urlencoded");
    request.setEntity(params);
    HttpResponse response = httpClient.execute(request);

    //handle response here...

}catch (Exception ex) {

    //handle exception here

} finally {
    //Deprecated
    //httpClient.getConnectionManager().shutdown(); 
}

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