<jsp:setProperty name="myUsers" property="psssword" param="mypass"/>運行后報錯 Cannot find any information on property [psssword] in a bean of type [com.po.Users]
dologin.jsp頁面
<%@ page language="java" import="java.util.*" contentType="text/html; charset=utf-8"
? ? pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body>
<h1>setProperty動作元素</h1>
<jsp:useBean id="myUsers" class="com.po.Users" scope="application"/>
<hr>
<!-- 根據表單自動匹配所有屬性 -->
<%--?
<jsp:setProperty name="myUsers" property="*"/>
--%>
<!-- 根據表單自動匹配部分屬性 -->
<%--?
<jsp:setProperty name="myUsers" property="username"/>
--%>
<!-- 跟表單無關，通過手工賦值給屬性 -->
<%--?
<jsp:setProperty name="myUsers" property="username" value="lisi"/>
<jsp:setProperty name="myUsers" property="password" value="88888888"/>
--%>
<!-- 通過URL傳參數給屬性賦值 -->
<jsp:setProperty? name="myUsers" property="username" />
<jsp:setProperty? name="myUsers" property="psssword" param="mypass"/>
<!-- 使用傳統(tǒng)的表達式方式來獲取用戶名和密碼 -->
<%--
用戶名：<%=myUsers.getUsername() %><br>
密碼：<%=myUsers.getPassword() %><br>
--%>
<!-- 通過getProperter方式傳參數來獲取用戶名和密碼 -->
用戶名：<jsp:getProperty property="username" name="myUsers"/><br>
密碼：<jsp:getProperty property="password" name="myUsers"/><br>
</body>
</html>
login.jsp頁面
<%@ page language="java" import="java.util.*" contentType="text/html; charset=utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body>
<h1>登錄系統(tǒng)</h1>
<hr>
<form name="loginForm" action="dologin.jsp?mypass=999999" method="post">
<table>
<tr>
<td>用戶名：</td>
<td><input type="text" name="username" value=""/></td>
</tr>
<tr>
<td>密碼：</td>
<td><input type="password" name="password" value=""/></td>
</tr>
<tr>
<td colspan="2" align="center"><input type="submit" value="登錄"/></td>
</tr>
</table>
</form>
</body>
</html>
2018-08-31
<jsp:setProperty? name="myUsers" property="username" />
<jsp:setProperty? name="myUsers" property="psssword" param="mypass"/>
"psssword"改為"password"單詞打錯了親~