Android 以Json格式发送Post服务请求

Myth丶恋晨 2022-05-19 06:36 373阅读 0赞

package com.example.msh.utils;
    
    import android.text.TextUtils;
    import android.util.Log;
    
    import java.io.BufferedReader;
    import java.io.IOException;
    import java.io.InputStreamReader;
    import java.io.OutputStream;
    import java.net.HttpURLConnection;
    import java.net.URL;
    
    /*服务请求帮助类
    Author ：William(徐威)
    Create Time：2018-07-21*/
    public class HttpHelper {
        private static String apiUrl = "http://192.168.0.102/Eson.Store.Host/";
    
        public static String sendJsonPost(String Json, String method) {
            // HttpClient 6.0被抛弃了
            String result = "";
            BufferedReader reader = null;
            try {
                String urlPath = apiUrl + method;
                URL url = new URL(urlPath);
                HttpURLConnection conn = (HttpURLConnection) url.openConnection();
                conn.setRequestMethod("POST");
                conn.setDoOutput(true);
                conn.setDoInput(true);
                conn.setUseCaches(false);
                conn.setRequestProperty("Connection", "Keep-Alive");
                conn.setRequestProperty("Charset", "UTF-8");
                // 设置文件类型:
                conn.setRequestProperty("Content-Type", "application/json; charset=UTF-8");
                // 设置接收类型否则返回415错误
                //conn.setRequestProperty("accept","*/*")此处为暴力方法设置接受所有类型，以此来防范返回415;
                conn.setRequestProperty("accept", "application/json");
                // 往服务器里面发送数据
                if (Json != null && !TextUtils.isEmpty(Json)) {
                    byte[] writebytes = Json.getBytes();
                    // 设置文件长度
                    conn.setRequestProperty("Content-Length", String.valueOf(writebytes.length));
                    OutputStream outwritestream = conn.getOutputStream();
                    outwritestream.write(Json.getBytes());
                    outwritestream.flush();
                    outwritestream.close();
                    Log.d("hlhupload", "doJsonPost: conn" + conn.getResponseCode());
                }
                if (conn.getResponseCode() == 200) {
                    reader = new BufferedReader(
                            new InputStreamReader(conn.getInputStream()));
                    result = reader.readLine();
                }
            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                if (reader != null) {
                    try {
                        reader.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }
            return result;
        }
    }