直接來，RequestDemo5代碼，get請求和post請求都請求轉發了，轉發到RequestDemo6請求

RequestDemo5代碼

package com.lingaolu.request; import javax.servlet.RequestDispatcher;import javax.servlet.ServletException;import javax.servlet.annotation.WebServlet;import javax.servlet.http.*;import java.io.IOException; /** * @author 林高祿 * @create 2020-07-07-12:06 */@WebServlet('/requestDemo5')public class RequestDemo5 extends HttpServlet { @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { System.out.println('requestDemo5進來了......post'); RequestDispatcher requestDispatcher = request.getRequestDispatcher('/requestDemo6'); requestDispatcher.forward(request,response); } @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { System.out.println('requestDemo5進來了......get'); RequestDispatcher requestDispatcher = request.getRequestDispatcher('/requestDemo6'); requestDispatcher.forward(request,response); }}

RequestDemo6代碼

package com.lingaolu.request; import javax.servlet.ServletException;import javax.servlet.annotation.WebServlet;import javax.servlet.http.*;import java.io.IOException; /** * @author 林高祿 * @create 2020-07-07-12:06 */@WebServlet('/requestDemo6')public class RequestDemo6 extends HttpServlet { @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { System.out.println('requestDemo6進來了......post'); } @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { System.out.println('requestDemo6進來了......get'); }}

瀏覽器訪問/requestDemo5接口

控制臺輸出

從以上結果可以看出

請求過后我們的瀏覽器地址還是http://localhost:8080/myRequest/requestDemo5

從瀏覽器的F12調試頁面可以看出，轉發只是一次請求，只有/requestDemo5請求，說明，可共享數據Request共享數據

我們用Postman進行post請求一下

后臺輸出：

可見，get請求的轉發會轉發到get請求，post請求的轉發，會轉發到post請求

我們改一下RequestDemo5的代碼，轉發到百度

package com.lingaolu.request; import javax.servlet.RequestDispatcher;import javax.servlet.ServletException;import javax.servlet.annotation.WebServlet;import javax.servlet.http.*;import java.io.IOException; /** * @author 林高祿 * @create 2020-07-07-12:06 */@WebServlet('/requestDemo5')public class RequestDemo5 extends HttpServlet { @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { System.out.println('requestDemo5進來了......post'); RequestDispatcher requestDispatcher = request.getRequestDispatcher('/requestDemo6'); requestDispatcher.forward(request,response); } @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { System.out.println('requestDemo5進來了......get'); RequestDispatcher requestDispatcher = request.getRequestDispatcher('https://www.baidu.com/'); requestDispatcher.forward(request,response); }}

瀏覽器請求

后臺輸出：

從后臺輸出看出，requestDemo5請求進來了，從瀏覽器看出，轉發失敗了，而且從實際轉發的路徑上看，因為虛擬路徑，所以請求轉發只能轉發到當前服務器內部的資源

請求轉發的特點總結：（與之對應的------重定向的詳情與特點）

到此這篇關于Java中Request請求轉發詳解的文章就介紹到這了,更多相關Java Request請求轉發內容請搜索好吧啦網以前的文章或繼續瀏覽下面的相關文章希望大家以后多多支持好吧啦網！