具體代碼如下所示：
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public static String sendGet(String url,String param) { String result = ""; try{ String urlName = url + "?"+param;// URL U = new URL(urlName); URLConnection connection = U.openConnection(); connection.connect(); BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream())); String line; while ((line = in.readLine())!= null) { result += line; } in.close(); }catch(Exception e){ System.out.println("Helloword！！"+e); } return result; } public static String sendPost(String url,String param) { String result=""; try{ URL httpurl = new URL(url); HttpURLConnection httpConn = (HttpURLConnection)httpurl.openConnection(); httpConn.setDoOutput(true); httpConn.setDoInput(true); PrintWriter out = new PrintWriter(httpConn.getOutputStream()); out.print(param); out.flush(); out.close(); BufferedReader in = new BufferedReader(new InputStreamReader(httpConn.getInputStream())); String line; while ((line = in.readLine())!= null) { result += line; } in.close(); }catch(Exception e){ System.out.println("Helloword！"+e); } return result; } |
下面給大家介紹 java得到GET和POST請求URL和參數(shù)列表的方法
在servlet中GET請求可以通過HttpServletRequest的getRequestURL方法和getQueryString()得到完整的請求路徑和請求所有參數(shù)列表，POST的需要getParameterMap()方法遍歷得到，不論GET或POST都可以通過getRequestURL+getParameterMap()來得到請求完整路徑
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package com.zuidaima import java.io.IOException; import java.io.PrintWriter; import java.util.Map; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class GetParams extends HttpServlet { private static final long serialVersionUID = 1L; public GetParams() { super(); } protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { PrintWriter writer = response.getWriter(); writer.println("GET " + request.getRequestURL() + " " + request.getQueryString()); Map<String, String[]> params = request.getParameterMap(); String queryString = ""; for (String key : params.keySet()) { String[] values = params.get(key); for (int i = 0; i < values.length; i++) { String value = values[i]; queryString += key + "=" + value + "&"; } } // 去掉最后一個空格 queryString = queryString.substring(0, queryString.length() - 1); writer.println("GET " + request.getRequestURL() + " " + queryString); } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { PrintWriter writer = response.getWriter(); Map<String, String[]> params = request.getParameterMap(); String queryString = ""; for (String key : params.keySet()) { String[] values = params.get(key); for (int i = 0; i < values.length; i++) { String value = values[i]; queryString += key + "=" + value + "&"; } } // 去掉最后一個空格 queryString = queryString.substring(0, queryString.length() - 1); writer.println("POST " + request.getRequestURL() + " " + queryString); } } |
以上代碼簡單易懂，希望對大家學習 java post get url 請求參數(shù)的相關(guān)方法有所幫助，感謝大家一直以來對服務器之家網(wǎng)站的支持，有你們的支持，我們會做的更好。
