JavaWeb-form傳值(從一個jsp頁面傳資料到另一個jsp頁面)
阿新 • • 發佈：2018-10-31
第一個頁面,login.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%-- 本行程式碼可以防止亂碼出現 --%> <% String path = request.getContextPath(); String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>login</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> </head> <body> <!--傳值到"login_action.jsp" 方式是post隱式傳遞。--> <form action="login_action.jsp" method="post"> 使用者名稱:<input type="text" name="username"><br /> 密碼:<input type="password" name="password"><br /> <input type="submit" value="登入"> </form> </body> </html>
第二個頁面 "login_action.jsp"
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>My JSP 'login_action.jsp' starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> <!-- <link rel="stylesheet" type="text/css" href="styles.css"> --> </head> <body> <%-- 使用此方法即可獲取名為"xxxx"的屬性的值 --%> 使用者名稱:<%=request.getParameter("username")%><br> 密碼:<%=request.getParameter("password")%> </body> </html>
瀏覽器輸入http://localhost:8080/FridayJob/login/login.jsp
得到
可以看到自動跳轉到"login_action.jsp"頁面