Path with "WEB-INF" or "META-INF": [WEB-INF/jsp/welcome.jsp]解决办法

本文介绍如何解决SpringBoot应用中使用JSP作为视图时出现的问题,并提供了具体的配置方法及所需依赖。

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@GetMapping("/")
public String welcome(Map<String, Object> model) {
	model.put("time", new Date());
	model.put("message", this.message);
	return "welcome";
}

application.properties 如下配置:
spring.mvc.view.prefix: /WEB-INF/jsp/
spring.mvc.view.suffix: .jsp

但是浏览器访问提示:
Whitelabel Error Page
This application has no explicit mapping for /error, so you are seeing this as a fallback.
查看控制台:
Path with “WEB-INF” or “META-INF”: [WEB-INF/jsp/welcome.jsp]

网上查原因spring boot不提倡用jsp,需要在pom.xml中加入以下依赖就可以了。

   <dependency>
        <groupId>org.apache.tomcat.embed</groupId>
        <artifactId>tomcat-embed-jasper</artifactId>
    </dependency>
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>jstl</artifactId>
    </dependency>

加完依赖注意刷新maven.

1.创建项目 在IDEA中,创建一个名称为chapter10的Maven Web项目,如果默认创建的Maven项目中没有自动生成webapp文件夹,可以手工添加webapp目录,添加WEB-INF目录。 2.导入的依赖包括Spring核心包的依赖、Spring MVC。 <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.itheima</groupId> <artifactId>chapter10</artifactId> <version>1.0-SNAPSHOT</version> <packaging>war</packaging> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <maven.compiler.source>1.7</maven.compiler.source> <maven.compiler.target>1.7</maven.compiler.target> </properties> <dependencies> <!--Spring 核心类--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>5.2.8.RELEASE</version> </dependency> <!--Spring MVC--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>5.2.8.RELEASE</version> </dependency> <!-- servlet --> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> <scope>provided</scope> </dependency> <!--JSP--> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>jsp-api</artifactId> <version>2.1</version> <scope>provided</scope> </dependency> </dependencies> <!--构建--> <build> <!--设置插件--> <plugins> <!--具体的插件配置--> <plugin> <groupId>org.apache.tomcat.maven</groupId> <artifactId>tomcat7-maven-plugin</artifactId> <configuration> <port>8080</port> <path>/chapter10</path> </configuration> </plugin> </plugins> </build> </project> 3.web.xml文件中配置前端控制器 <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0"> <!-- 配置 Spring MVC 的前端控制器 --> <servlet> <servlet-name>DispatcherServlet</servlet-name> <servlet-class> org.springframework.web.servlet.DispatcherServlet </servlet-class> <!-- 配置初始化参数,用于读取 Spring MVC 的配置文件 --> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-mvc.xml</param-value> </init-param> <!-- 应用加载时创建--> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>DispatcherServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> </web-app> 4.创建Spring MVC的配置文件spring-mvc.xml <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <!-- 配置 Spring MVC 要扫描的包 --> <context:component-scan base-package="com.itheima.controller"/> <!-- 配置视图解析器 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/pages/"/> <property name="suffix" value=".jsp"/> </bean> </beans> 5.创建处理器 在com.itheima.controller包中创建处理器FirstController类,用于处理客户端的请求并指定响应时转跳的页面。 package com.itheima.controller; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; //设置当前类为处理器类 @Controller public class FirstController { //设定当前方法的访问映射地址 @RequestMapping("/firstController") //设置当前方法返回值类型为 String,用于指定请求完成后跳转的页面 public String sayHello() { System.out.println("访问到 FirstController!"); //设定具体跳转的页面 return "success"; } } 6.创建视图(View)页面 在项目的Web-INF文件夹下创建名称为pages的文件夹,并在pages文件夹下创建名称为success的jsp文件,用于对客户端请求进行处理后的视图展示。 <html> <body> <h2>Spring MVC FirstController!</h2> </body> </html> 7.启动项目,测试应用 idea社区版需要自己安装Tomcat插件,选择File菜单下的Settings,选择Plugins添加smart tomcat。帮我把代码总结一下,并步骤完成并取得结果
05-17
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version="3.1"> <!-- 1. 字符编码过滤器(必须放在第一个filter) --> <filter> <filter-name>encodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- 2. 静态资源处理过滤器(新增) --> <filter> <filter-name>staticResourceFilter</filter-name> <filter-class>org.springframework.web.filter.ResourceUrlEncodingFilter</filter-class> </filter> <filter-mapping> <filter-name>staticResourceFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- 3. Spring MVC 前端控制器 --> <servlet> <servlet-name>dispatcher</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/spring/spring-mvc.xml</param-value> </init-param> <init-param> <param-name>throwExceptionIfNoHandlerFound</param-name> <param-value>true</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <!-- 4. 静态资源放行配置(关键修改) --> <servlet-mapping> <servlet-name>default</servlet-name> <url-pattern>/statics/*</url-pattern> <url-pattern>/images/*</url-pattern> <url-pattern>*.css</url-pattern> <url-pattern>*.js</url-pattern> <url-pattern>*.png</url-pattern> <url-pattern>*.jpg</url-pattern> <url-pattern>*.gif</url-pattern> <url-pattern>*.ico</url-pattern> <url-pattern>*.woff</url-pattern> <url-pattern>*.woff2</url-pattern> <url-pattern>*.ttf</url-pattern> <url-pattern>*.svg</url-pattern> </servlet-mapping> <!-- 5. Spring MVC 映射(必须放在静态资源之后) --> <servlet-mapping> <servlet-name>dispatcher</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!-- 6. 错误页面配置(可选) --> <error-page> <error-code>404</error-code> <location>/WEB-INF/views/error/404.jsp</location> </error-page> <!-- 7. 欢迎页配置 --> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app>/这是web.xml界面/<%@ 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> <html> <head> <meta charset="UTF-8"> <title>流浪狗救助站 - 首页</title> <link rel="stylesheet" href="${pageContext.request.contextPath}/statics/css/style.css" /> <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script> <script> $(document).ready(function() { // 动态数字动画效果 $('.stat-number').each(function() { var $this = $(this); var target = parseInt($this.text().replace('+', '')); var current = 0; var increment = target / 50; // 控制动画速度 var timer = setInterval(function() { current += increment; if (current >= target) { clearInterval(timer); current = target; $this.text(target + '+'); } else { $this.text(Math.floor(current) + '+'); } }, 20); }); // 平滑滚动到锚点 $('a[href^="#"]').on('click', function(event) { event.preventDefault(); $('html, body').animate({ scrollTop: $($.attr(this, 'href')).offset().top }, 800); }); }); </script> </head> <body> <header class="navbar"> <div class="nav-container"> <ul class="nav-menu"> <li class="active"><a href="${pageContext.request.contextPath}/views/user/home.jsp">首页</a></li> <li><a href="${pageContext.request.contextPath}/dogs">待领养狗狗</a></li> <li><a href="${pageContext.request.contextPath}/views/user/about.jsp">关于我们</a></li> <li><a href="${pageContext.request.contextPath}/views/user/contact.jsp">联系我们</a></li> <c:if test="${not empty sessionScope.user}"> <li><a href="${pageContext.request.contextPath}/logout">退出登录</a></li> </c:if> </ul> </div> </header> <div class="hero"> <h1 class="hero-title">为流浪狗发声,让世界更美好</h1> <p class="hero-subtitle">携手保护流浪动物,共建和谐生态环境</p> <div class="btn-container"> <a href="${pageContext.request.contextPath}/views/login.jsp" class="btn btn-primary">立即行动</a> <a href="#about-section" class="btn btn-secondary">了解更多</a> </div> </div> <section class="stats"> <div class="stat-item"> <div class="stat-number">25+</div> <div class="stat-label">救助项目</div> </div> <div class="stat-item"> <div class="stat-number">1200+</div> <div class="stat-label">志愿者</div> </div> <div class="stat-item"> <div class="stat-number">50+</div> <div class="stat-label">合作伙伴</div> </div> </section> <!-- 新增的详细介绍部分 --> <section id="about-section" class="about-section"> <div class="container"> <h2>关于潦草小狗救助站</h2> <div class="about-content"> <div class="about-text"> <h3>我们的使命</h3> <p>潦草小狗救助站成立于2010年,是一个非营利性组织,致力于为无家可归的流浪狗提供庇护、医疗和寻找永久家庭的机会。我们相信每只狗都值得被关爱和保护。</p> <h3>我们的工作</h3> <p>我们的工作包括:</p> <ul> <li>救助街头流浪狗并提供临时庇护</li> <li>为狗狗提供必要的医疗护理和绝育服务</li> <li>通过领养计划为狗狗寻找永久家庭</li> <li>开展公众教育活动,提高动物保护意识</li> <li>倡导动物福利政策的改进</li> </ul> <h3>我们的成就</h3> <p>自成立以来,我们已经:</p> <ul> <li>救助了超过5000只流浪狗</li> <li>为3000多只狗狗找到了永远的家</li> <li>开展了200多场公众教育活动</li> <li>建立了覆盖全市的志愿者网络</li> </ul> </div> <div class="about-image"> <img src="${pageContext.request.contextPath}/images/rescue-dog.jpg" alt="被救助的狗狗"> </div> </div> </div> </section> <section class="how-to-help"> <div class="container"> <h2>如何帮助它们</h2> <div class="help-options"> <div class="help-option"> <div class="help-icon">🏠</div> <h3>领养</h3> <p>给无家可归的狗狗一个温暖的家。领养不仅拯救了一只狗的生命,也为其他需要救助的狗狗腾出了空间。</p> <a href="${pageContext.request.contextPath}/dogs" class="btn btn-small">查看待领养狗狗</a> </div> <div class="help-option"> <div class="help-icon">🤝</div> <h3>志愿者</h3> <p>加入我们的志愿者团队,参与狗狗的日常照顾、遛狗、清洁等工作。您的每一分钟都能带来改变。</p> <a href="${pageContext.request.contextPath}/views/user/contact.jsp" class="btn btn-small">成为志愿者</a> </div> <div class="help-option"> <div class="help-icon">💝</div> <h3>捐赠</h3> <p>您的捐款将直接用于狗狗的食物、医疗和庇护所运营。每一分钱都能帮助改善狗狗的生活,助力它们走向更好的未来。</p> <a href="#" class="btn btn-small">立即捐赠</a> </div> </div> </div> </section> </body> </html>/这是index.jsp,为什么css文件不体现
最新发布
07-11
我发你一个导航页代码,你协调好它们之间的关系,并且用easyui美化它们。 导航页ProNv:“<%@ 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>商品基本信息管理系统</title> </head> <frameset rows="15%,*" cols="*" frameborder="yes" border="5" framespacing="0"> <frame src="<%=request.getContextPath()%>/prohome/top.jsp" name="topFrame" scrolling="NO" noresize > <frameset cols="25%,*" frameborder="yes" border="5" framespacing="0"> <frame src="<%=request.getContextPath()%>/prohome/left.jsp" name="leftFrame" scrolling="YES" noresize> <frame src="<%=request.getContextPath()%>/prohome/welcome.jsp" name="mainFrame"> </frameset> </frameset> <noframes> <body>您的浏览器无法处理框架!</body> </noframes> </html> ” 左页面:“<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" import="javax.servlet.http.HttpServletRequest"%> <!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> <table width="400" border="0" cellspacing="0" cellpadding="0"> <tr> <td><a href="../proinfomgmt/ProInfolist.jsp" target="mainFrame">商品基本信息列表</a></td> </tr> <tr> <td><a href="../proinfomgmt/QueryProInfoSelectVal.jsp" target="mainFrame">商品列表查询</a></td> </tr> <tr> <td><a href="../proinfomgmt/QueryProInfo.jsp" target="mainFrame">查询商品基本信息</a></td> </tr> <tr> <td><a href="../proinfomgmt/QueryProInfoMultConds.jsp" target="mainFrame">多条件查询学生基本信息</a></td> </tr> <tr> <td><a href="../proinfomgmt/AddProInfo.jsp" target="mainFrame">添加商品基本信息</a></td> </tr> <tr> <td><a href="../proinfomgmt/ProInfolistforModi.jsp" target="mainFrame">修改或删除商品基本信息</a></td> </tr> <tr> <td><a href="../invinfomgmt/Invinfolist.jsp" target="mainFrame">库存信息列表</a></td> </tr> <tr> <td><a href="../invinfomgmt/QueryInvInfoMultConds.jsp" target="mainFrame">多条件查询库存信息</a></td> </tr> <tr> <td><a href="../invinfomgmt/QueryInvInfoSelectVal.jsp" target="mainFrame">库存列表查询</a></td> </tr> <tr> <td><a href="../Inbinfomgmt/AddInbInfo.jsp" target="mainFrame">添加入库信息</a></td> </tr> <tr> <td><a href="../Inbinfomgmt/InbInfolistforModi.jsp" target="mainFrame">修改或删除入库信息</a></td> </tr> <tr> <td><a href="../Outinfomgmt/AddOutInfo.jsp" target="mainFrame">添加出库信息</a></td> </tr> <tr> <td><a href="../Outinfomgmt/OutInfolistforModi.jsp" target="mainFrame">修改或删除出库信息</a></td> </tr> <tr> <td><a href="../userinfomgmt/UserInfolistforModi_1.jsp" target="mainFrame">员工重置密码</a></td> </tr> <% String operator_id = (String) request.getSession().getAttribute("user"); //下一句不能用== if ("U202340848".equals(operator_id)) { %> <tr> <td><a href="../userinfomgmt/AddUserInfo.jsp" target="mainFrame">管理员添加员工信息</a></td> </tr> <tr> <td><a href="../userinfomgmt/UserInfolist_1.jsp" target="mainFrame">管理员查看员工列表</a></td> </tr> <tr> <td><a href="../userinfomgmt/UserInfolistforModi.jsp" target="mainFrame">管理员重置员工密码和删除员工信息</a></td> </tr> <tr> <td><a href="../userinfomgmt/QueryUserInfoSelectVal.jsp" target="mainFrame">管理员通过列表查询员工信息</a></td> </tr> <tr> <td><a href="../userinfomgmt/QueryUserInfo.jsp" target="mainFrame">管理员精准查询员工信息</a></td> </tr> <% } if ("".equals(operator_id)) { System.out.println("无session");//测试用 %> <%} %> </table> </body> </html> ” 主页面:“<%@ 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>商品基本信息管理</title> </head> <body style="background: url(../image/welcome.jpg); background-size:40% 100%; background-attachment: fixed; background-repeat:no-repeat; background-position:center center"> </body> </html> ” 顶端页面:“<%@ 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>商品基本信息管理系统</title> </head> <body> <h1 align="center">商品基本信息管理系统</h1> <div align="right"><a href="<%=request.getContextPath()%>/UserLogousvlt">注销</a></div> </body> </html> ”
07-06
%@ page contentType="text/html;charset=UTF-8" language="java" %> <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta charset="utf-8"> <!-- 标题栏LOGO --> <link rel="icon" type="image/x-icon" href="/favicon.ico"> <!--字体图标--> <link href="javaex/pc/css/icomoon.css" rel="stylesheet" /> <!--动画--> <link href="javaex/pc/css/animate.css" rel="stylesheet" /> <!--骨架样式--> <link href="javaex/pc/css/common.css" rel="stylesheet" /> <!--皮肤(缇娜)--> <link href="javaex/pc/css/skin/tina.css" rel="stylesheet" /> <!--jquery,不可修改版本--> <script src="javaex/pc/lib/jquery-1.7.2.min.js"></script> <!--全局动态修改--> <script src="javaex/pc/js/common.js"></script> <!--核心组件--> <script src="javaex/pc/js/javaex.min.js"></script> <!--表单验证--> <script src="javaex/pc/js/javaex-formVerify.js"></script> <title>星云图书馆后台管理</title> <style> </style> </head> <body> <!--顶部导航--> <div class="admin-navbar"> <div class="admin-container-fluid clear"> <!--logo名称--> <div class="admin-logo">星云图书管理系统</div> <!--右侧--> <ul class="admin-navbar-nav fr"> <li> <a href="javascript:;">欢迎您,<span id="nickname"> <c:if test="${not empty loginUser}"> ${loginUser.nickname} </c:if> </span></a> <ul class="dropdown-menu" style="right: 10px;"> <li><a href="${pageContext.request.contextPath}/login?method=loginOut">退出当前账号</a></li> </ul> </li> </ul> </div> </div> <!--主题内容--> <div class="admin-mian"> <!--左侧菜单--> <div class="admin-aside admin-aside-fixed"> <!-- 应用标题 --> <div id="admin-toc" class="admin-toc"> <div class="menu-box"> <div id="menu" class="menu"> <ul> <li class="menu-item hover"> <a href="javascript:page('${pageContext.request.contextPath}/welcome.jsp');"><i class="icon-home2"></i>首页</a> </li> <li class="menu-item"> <a href="javascript:;">图书管理<i class="icon-keyboard_arrow_left"></i></a> <ul> <li><a href="javascript:page('${pageContext.request.contextPath}/book/book-list.jsp');">图书列表</a></li> <li><a href="javascript:page('${pageContext.request.contextPath}/book/book-add.jsp');">图书上架</a></li> </ul> </li> <li class="menu-item"> <a href="javascript:;">借阅管理<i class="icon-keyboard_arrow_left"></i></a> <ul> <li><a href="javascript:page('${pageContext.request.contextPath}/borrow/book-search.jsp');">搜索图书</a></li> <li><a href="javascript:page('${pageContext.request.contextPath}/borrow/borrow.jsp');">借阅图书</a></li> <li><a href="javascript:page('${pageContext.request.contextPath}/borrow/back.jsp');">归还图书</a></li> </ul> </li> <li class="menu-item"> <a href="javascript:;">读者管理<i class="icon-keyboard_arrow_left"></i></a> <ul> <li><a href="javascript:page('${pageContext.request.contextPath}/reader/reader-list.jsp');">读者列表</a></li> <li><a href="javascript:page('${pageContext.request.contextPath}/reader/reader-add.jsp');">读者添加</a></li> </ul> </li> <li class="menu-item"> <a href="javascript:;">用户中心<i class="icon-keyboard_arrow_left"></i></a> <ul> <li><a href="javascript:page('user/user-info.html');">个人信息</a></li> <li><a href="javascript:page('user/user-list.html');">用户管理</a></li> <li><a href="javascript:page('user/user-add.html');">添加管理员</a></li> </ul> </li> </ul> </div> </div> </div> </div> <!--iframe载入内容--> <div class="admin-markdown"> <iframe id="page" src="${pageContext.request.contextPath}/welcome.jsp" ></iframe> </div> </div> </body> <script> var hightUrl = "xxxx"; javaex.menu({ id : "menu", isAutoSelected : true, key : "", url : hightUrl }); $(function() { // 设置左侧菜单高度 setMenuHeight(); }); /** * 设置左侧菜单高度 */ function setMenuHeight() { var height = document.documentElement.clientHeight - $("#admin-toc").offset().top; height = height - 10; $("#admin-toc").css("height", height+"px"); } // 控制页面载入 function page(url) { $("#page").attr("src", url); } $(document).ready(function(){ // 页面一加载, 读取登录用户信息 // get读取参数 // $.get("/user/currUser", function(data){ // var code = data.code; // var user = data.data; // if (code == 200) { // // 设置用户昵称 // $("#nickname").text(user.nickname); // } // // return false; // }); }); </script> </html> 此代码中出现Cannot resolve taglib with uri http://java.sun.com/jsp/jstl/core Cannot resolve symbol 'c:if' Cannot resolve symbol 'c:if'这些错误,如何改正这些错误
06-20
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