试了很多次，还是不行
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page import="javax.servlet.jsp.PageContext" %>
<!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>Title</title>
</head>
<body>
<%--${pageContext.request.contextPath}--%>
<jsp:forward page="/emps"></jsp:forward>
</body>
</html>
使用
${pageContext.request.contextPath}多了项目路径
不使用报错
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<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_4_0.xsd"
version="4.0" >
<!--spring 启动容器-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!--配置SpringMVC前端控制器-->
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:dispatcherServlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!--字符编码过滤器 其他过滤器之前-->
<filter>
<filter-name>characterEncodingFilter</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>forceRequestEncoding</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<param-name>forceResponseEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!--使用Rest风格-->
<filter>
<filter-name>hiddenHttpMethodFilter</filter-name>
<filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>hiddenHttpMethodFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
@Controller
public class EmployeeController {
@Autowired
private EmployeeService employeeService;
//跳转查询所有员工
@RequestMapping("/emps")
public String getEmps(@RequestParam(value = "pn",defaultValue = "1") Integer pn, Model model){
PageHelper.startPage(pn,5);
List<Employee> emps = employeeService.getAll();
PageInfo page = new PageInfo(emps,5);
model.addAttribute("pageInfo",page);
return "list";
}
}
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ page import="javax.servlet.jsp.PageContext" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
<title>员工列表</title>
<%
pageContext.setAttribute("APP_PATH", request.getContextPath());
%>
<script src="${APP_PATH}/static/js/jquery-3.5.1.min.js"></script>
<link rel="stylesheet" href="${APP_PATH}/static/bootstrap-3.4.1-dist/css/bootstrap.min.css">
<script src="${APP_PATH}/static/bootstrap-3.4.1-dist/js/bootstrap.min.js"></script>
</head>
<body>
<%--搭建显示页面--%>
<div class="container">
<%--按钮--%>
<div class="row">
<div class="col-md-4 col-md-offset-8">
<button class="btn btn-primary">新增</button>
<button class="btn btn-danger">删除</button>
</div>
</div>
<%--显示表格数据--%>
<div class="row">
<div class="col-md-12">
<table class="table table-hover">
<tr>
<th>#</th>
<th>empName</th>
<th>gender</th>
<th>email</th>
<th>deptName</th>
<th>操作</th>
</tr>
<c:forEach items="${pageInfo.list}" var="emp">
<tr>
<th>${emp.empId }</th>
<th>${emp.empName }</th>
<th>${emp.gender=='M'?"男":"女" }</th>
<th>${emp.email }</th>
<th>${emp.department.deptName }</th>
<th>
<button class="btn btn-primary btn-sm">
<span class="glyphicon glyphicon-pencil" aria-hidden="true"></span>
编辑
</button>
<button class="btn btn-danger btn-sm">
<span class="glyphicon glyphicon-trash" aria-hidden="true"></span>
删除
</button>
</th>
</tr>
</c:forEach>
</table>
</div>
</div>
<%--显示分页信息--%>
<div class="row">
<%--文字信息--%>
<div class="col-md-6">
当前${pageInfo.pageNum}页,总${pageInfo.pages}页,总${pageInfo.total}条记录
</div>
<%--分页条信息--%>
<div class="">
<nav aria-label="Page navigation">
<ul class="pagination">
<li><a href="#">首页</a> </li>
<li>
<a href="#" aria-label="Previous">
<span aria-hidden="true">«</span>
</a>
</li>
<c:forEach items="${pageInfo.navigatepageNums }" var="page_Num">
<c:if test="${page_Num ==pageInfo.pageNum }">
<li class="active"><a href="#">${page_Num }</a></li>
</c:if>
<c:if test="${page_Num !=pageInfo.pageNum}">
<li><a href="#{APP_PATH }/emps?pn=${page_Num }">${page_Num }</a></li>
</c:if>
</c:forEach>
<li>
<a href="#" aria-label="Next">
<span aria-hidden="true">«</span>
</a>
</li>
<li><a href="#">尾页</a> </li>
</ul>
</nav>
</div>
</div>
</div>
</body>
</html>
没有写分页信息还是可以运行的，后面index页面就报500
求解
