使用HttpURLConnection呼叫url方式訪問spring mvc中的controller並傳json值與返回
阿新 • • 發佈：2019-02-10
3.1 controller中讀取json資料並進行相關操作：package com.zl.test2; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.OutputStream; import java.io.OutputStreamWriter; import java.net.HttpURLConnection; import java.net.InetSocketAddress; import java.net.Proxy; import java.net.URL; import java.net.URLConnection; import com.zl.test1.HttpRequestUtil; /** * * @author zenglong * * @Description: 往介面平臺推送json資料 * */ public class HttpUrlSend { static String proxyHost = "127.0.0.1"; static int proxyPort = 8080; /** * 向指定URL傳送GET方法的請求 * * @param url * 傳送請求的URL * @param param * 請求引數，請求引數應該是 name1=value1&name2=value2 的形式。 * @return URL 所代表遠端資源的響應結果 */ public static String sendGet(String url, String param) { String result = ""; BufferedReader in = null; try { // String urlNameString = url + "?" + param; URL realUrl = new URL(url); // 開啟和URL之間的連線 URLConnection connection = realUrl.openConnection(); // 設定通用的請求屬性 connection.setRequestProperty("accept", "*/*"); connection.setRequestProperty("connection", "Keep-Alive"); connection.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)"); // 建立實際的連線 connection.setDoOutput(true); connection.connect(); // 獲取所有響應頭欄位 // Map<String, List<String>> map = connection.getHeaderFields(); // // 遍歷所有的響應頭欄位 // for (String key : map.keySet()) { // System.out.println(key + "--->" + map.get(key)); // } String jsonStr="{" + "\"bgyprogressuuid\": \"aabc891fc62f41728497da2904294e29\"," + "\"bgysupplier\": \"供應商名稱3\"," + " \"bgyitemname\": \"專案公司名稱3\"," + "\"bgyitemcode\": \"0003\"," + "\"bgyarea\": \"佛山區域3\"," + "\"bgycontractname\": \"合同名稱\"," + "\"bgycontractno\": \"合同編號003\"," + "\"bgypayamount\": 888.989," + "\"bgysupplierbank\": \"供應商開戶行：中國銀行\"," + "\"bgysupplieraccount\": \"供應商賬號：88888989989\"," + "\"bgysupplieraccountname\": \"收方戶名：佛山碧桂園\"," + "\"bgypaystatus\": false," + "\"dr\": 0}"; OutputStream out = connection.getOutputStream(); // 寫入請求的字串 out.write((jsonStr.toString()).getBytes()); out.flush(); out.close(); // 定義 BufferedReader輸入流來讀取URL的響應 in = new BufferedReader(new InputStreamReader( connection.getInputStream())); String line; while ((line = in.readLine()) != null) { result += line; } } catch (Exception e) { System.out.println("傳送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; } /** * 向指定 URL 傳送POST方法的請求 * * @param url * 傳送請求的 URL * @param param * 請求引數，請求引數應該是 name1=value1&name2=value2 的形式。 * @param isproxy * 是否使用代理模式 * @return 所代表遠端資源的響應結果 */ public static String sendPost(String url, String param,boolean isproxy) { OutputStreamWriter out = null; BufferedReader in = null; String result = ""; try { URL realUrl = new URL(url); HttpURLConnection conn = null; if(isproxy){//使用代理模式 @SuppressWarnings("static-access") Proxy proxy = new Proxy(Proxy.Type.DIRECT.HTTP, new InetSocketAddress(proxyHost, proxyPort)); conn = (HttpURLConnection) realUrl.openConnection(proxy); }else{ conn = (HttpURLConnection) realUrl.openConnection(); } // 開啟和URL之間的連線 // 傳送POST請求必須設定如下兩行 conn.setDoOutput(true); conn.setDoInput(true); conn.setRequestMethod("POST"); // POST方法 // 設定通用的請求屬性 conn.setRequestProperty("accept", "*/*"); conn.setRequestProperty("connection", "Keep-Alive"); conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)"); conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); conn.connect(); // 獲取URLConnection物件對應的輸出流 out = new OutputStreamWriter(conn.getOutputStream(), "UTF-8"); String jsonStr="{" + "\"bgyprogressuuid\": \"aabc891fc62f41728497da2904294e29\"," + "\"bgysupplier\": \"供應商名稱3\"," + " \"bgyitemname\": \"專案公司名稱3\"," + "\"bgyitemcode\": \"0003\"," + "\"bgyarea\": \"佛山區域3\"," + "\"bgycontractname\": \"合同名稱\"," + "\"bgycontractno\": \"合同編號003\"," + "\"bgypayamount\": 888.989," + "\"bgysupplierbank\": \"供應商開戶行：中國銀行\"," + "\"bgysupplieraccount\": \"供應商賬號：88888989989\"," + "\"bgysupplieraccountname\": \"收方戶名：佛山碧桂園\"," + "\"bgypaystatus\": false," + "\"dr\": 0}"; // 傳送請求引數 out.write(jsonStr); // flush輸出流的緩衝 out.flush(); // 定義BufferedReader輸入流來讀取URL的響應 in = new BufferedReader( new InputStreamReader(conn.getInputStream())); String line; while ((line = in.readLine()) != null) { result += line; } } catch (Exception e) { System.out.println("傳送 POST 請求出現異常！"+e); e.printStackTrace(); } //使用finally塊來關閉輸出流、輸入流 finally{ try{ if(out!=null){ out.close(); } if(in!=null){ in.close(); } } catch(IOException ex){ ex.printStackTrace(); } } return result; } public static void main(String[] args) { /** * post 方式推資料到平臺 */ String url = "http://127.0.0.1:8080/abs/sendProgressinfo"; String para = ""; String sr=HttpUrlSend.sendPost(url,para,true); /** * get 方式推資料到平臺 */ // String url2 = "http://127.0.0.1:8080/abs/sendProgressinfo"; // String para2 = ""; // String sr=HttpUrlSend.sendGet(url2,para2); System.out.println(sr); } }