162.Java中發出請求獲取別人的數據（阿里雲查詢IP歸屬地）

時間 2019-11-12

標籤 162.java java 發出請求獲取別人數據阿里查詢歸屬欄目 Java 简体版

原文原文鏈接

1.效果

調用阿里雲的接口去定位IP地址php

2. 代碼

/**
   * 1. Java中遠程調用方法
   *            http://localhost:8080/mavenssm20180519/invokingUrl.action
   * @Title: invokingUrl
   * @Description:
   * @return void
   * @throws Exception
   * @throws
   @date 2018年7月22日下午11:58:58
   */
   @RequestMapping("/invokingUrl.action")
   public void invokingUrl(HttpServletRequest request) throws Exception{

       //------------------------java中發送請求---------------開始------------
       //記錄登陸着的id信息
       //(1)拿到用戶的ip
       String remoteAddr = request.getRemoteAddr();
       //(2) 經過淘寶IP地址庫獲取IP位置
       // 動態調用數據庫數據
       PrintWriter out = null;
       BufferedReader in =null;
       String getData ="";
       String line;
       URL url = new URL("http://ip.taobao.com/service/getIpInfo.php?ip="+remoteAddr);//import java.net.URL;
       URLConnection conn = url.openConnection();// import java.net.URLConnection;
       //發生post必須設置以下兩行
           conn.setDoOutput(true);
           conn.setDoInput(true);
       //獲取URLConnection對象對應的輸出流
           out = new PrintWriter(new OutputStreamWriter(conn.getOutputStream(),"UTF-8"));
           out.flush();
       //定義 BufferedReader 輸入流的URL響應
           in = new BufferedReader(new InputStreamReader(conn.getInputStream(),"UTF-8"));
           while((line = in.readLine())!=null){
               getData += line;
           }


       System.out.println(getData);
       //------------------------java中發送請求---------------結束------------
   }

2. 在java發送get/post的請求

2.1 utils 類

package cn.mg.kindeditor.utils;java

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.URL;
import java.net.URLConnection;git

public class sendRequestUtils {
   /**
   * 1.post方式發送請求
   * @param requestUrl
   * @return
   * @throws Exception
   */
       public static String sendPostRequest(String requestUrl) throws Exception{

           //------------------------java中發送請求---------------開始------------
   //記錄登陸着的id信息
   //(1)拿到用戶的ip
   //(2) 經過淘寶IP地址庫獲取IP位置
   // 動態調用數據庫數據
   PrintWriter out = null;
   BufferedReader in =null;
   String getData ="";
   String line;
   URL url = new URL(requestUrl);//import java.net.URL;
   URLConnection conn = url.openConnection();// import java.net.URLConnection;
   //發生post必須設置以下兩行
   conn.setDoOutput(true);
   conn.setDoInput(true);
   //獲取URLConnection對象對應的輸出流
   out = new PrintWriter(new OutputStreamWriter(conn.getOutputStream(),"UTF-8"));
   out.flush();
   //定義 BufferedReader 輸入流的URL響應
   in = new BufferedReader(new InputStreamReader(conn.getInputStream(),"UTF-8"));
   while((line = in.readLine())!=null){
   getData += line;
   }

   System.out.println(getData);

           return getData;
       }

       /**
       * 2.get方式發送請求
       * @param url
       * @return
       */
       public static String sendGetRequest(String url){
   String result = "";
   String line;
   StringBuffer sb=new StringBuffer();
   BufferedReader in = null;
   try {

   URL realUrl = new URL(url);
   // 打開和URL之間的鏈接
   URLConnection conn = realUrl.openConnection();
   // 設置通用的請求屬性設置請求格式
   conn.setRequestProperty("contentType", "utf-8");
   conn.setRequestProperty("content-type", "application/x-www-form-urlencoded");
   //設置超時時間
   conn.setConnectTimeout(60);
   conn.setReadTimeout(60);
   // 創建實際的鏈接
   conn.connect();
   // 定義 BufferedReader輸入流來讀取URL的響應,設置接收格式
   in = new BufferedReader(new InputStreamReader(
   conn.getInputStream(),"utf-8"));
   while ((line = in.readLine()) != null) {
   sb.append(line);
   }
   result=sb.toString();
   } catch (Exception e) {
   System.out.println("發送GET請求出現異常！" + e);
   e.printStackTrace();
   }
   // 使用finally塊來關閉輸入流
   finally {
   try {
   if (in != null) {
   in.close();
   }
   } catch (Exception e2) {
   e2.printStackTrace();
   }
   }
   return result;
       }
}
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