从Java发送JSON对象并在PHP中解码JSON对象[重复]

I want to receive data in a Java program and send a json HTTP request to a PHP program to process further. I have written the following Java program.

import java.io.IOException;
import java.util.Scanner;

import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;


public class JSON_Test_1 
{
    public static void main(String args[]) throws IOException
    {
        CloseableHttpClient httpClient = HttpClientBuilder.create().build();

        Scanner obj = new Scanner(System.in);
        System.out.print ("Name: ");
        String name = obj.nextLine();

        //create a new JSON object
        JSONObject root = new JSONObject();
        //put the variables in JSON oebject

        root.put("name", name);
        System.out.println(root.toJSONString());

        try 
        {
            HttpPost request = new HttpPost("http://localhost/Test/");
            StringEntity params = new StringEntity(root.toString());
            request.addHeader("content-type", "application/json");
            request.setEntity(params);
            httpClient.execute(request);
        // handle response here...
        } 
        catch (Exception ex)
        {
            // handle exception here
        } 
        finally 
        {
            httpClient.close();
        }

    }    
}

Can anyone help me understand how can I decode the json object in the PHP program. Thanks in advance.

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The data should be "in" the request input/body stream of the php instance, which you can access via php://input.
The (string) json data can be decoded via json_decode()

<?php
$data = json_decode( file_get_contents('php://input'), true );
echo $data['name'];