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  • <jsp:param>传参乱码问题

    在添加参数的界面添加<%request.setCharacterEncoding("UTF-8");%>

    实例代码:

    login_confirm.jsp

    <%@ page language="java" contentType="text/html; charset=utf-8"
        pageEncoding="utf-8"%>
    <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
    <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
    <html>
    <head>
    <!-- 解决jsp:param传参乱码问题 -->
    <%request.setCharacterEncoding("UTF-8");%>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <title>登录验证界面</title>
    </head>
    <body>
    <c:if test="${param.username==\"123\" && param.userpass==\"123456\"}">
    <!-- 把用户信息添加到session-->
    <c:set var="username" value="${param.username}" scope="session"/>
    <jsp:forward page="login_success.jsp"/>
    </c:if>
    
    <c:if test="${param.username !=\"123\"}">
    <jsp:forward page="login_failure.jsp">
    <jsp:param name="info" value="用户名不正确"/>
    </jsp:forward>
    </c:if>
    <c:if test="${param.userpass!=\"123456\"}">
    <jsp:forward page="login_failure.jsp">
    <jsp:param name="info" value="用户口令不正确"/>
    </jsp:forward>
    </c:if>
    
    </body>
    </html>

    login_failure.jsp

    <%@ page language="java" 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>登录成功界面</title>
    </head>
    <body>
    登录失败,错误信息如下:${param.info}
    <div align="center">
        <a href="index.jsp">重新登录</a>
    </div>
    </body>
    </html>
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  • 原文地址:https://www.cnblogs.com/anan1688/p/4487100.html
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