<%--
Created by IntelliJ IDEA.
User: 784854876
Date: 2021/11/12
Time: 9:17
To change this template use File | Settings | File Templates.
--%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>书籍展示</title>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css" integrity="sha384-HSMxcRTRxnN+Bdg0JdbxYKrThecOKuH5zCYotlSAcp1+c8xmyTe9GYg1l9a69psu" crossorigin="anonymous">
</head>
<body>
<div class="container">
<div class="row clearfix">
<div class="col-md-12 column">
<div class="page-header">
<h1>
<small>书籍列表---显示</small>
</h1>
</div>
</div>
</div>
<div class="row">
<div class="col-md-4 column">
<a class="btn btn-primary" href="${pageContext.request.contextPath}/book/toAddPaper">新增</a>
<a class="btn btn-primary" href="${pageContext.request.contextPath}/book/allBook">返回主页</a>
</div>
<div class="col-md-4 column"></div>
<div class="col-md-4 column">
<form class="form-inline" action="${pageContext.request.contextPath}/book/searchBook" method="post" style="float:right">
<input type="text" name="Search" class="form-control" placeholder="请输入书籍号" required>
<input type="submit" value="搜索" class="btn btn-primary">
</form>
</div>
</div>
<div class="row clearfix">
<div class="col-md-12 column">
<table class="table table-hover table-striped">
<thead>
<tr>
<th>书籍信息</th>
<th>书籍名称</th>
<th>书籍数量</th>
<th>书籍详情</th>
</tr>
</thead>
<tbody>
<c:forEach var="Books" items="${list}">
<tr>
<td>${Books.bookID}</td>
<td>${Books.bookName}</td>
<td>${Books.bookCounts}</td>
<td>${Books.detail}</td>
<td>
<a href="${pageContext.request.contextPath}/book/update?id=${Books.bookID}" class="btn btn-primary">修改</a>
<a href="${pageContext.request.contextPath}/book/deleteBook/${Books.bookID}" class="btn btn-primary">删除</a>
</td>
</tr>
</c:forEach>
</tbody>
</table>
</div>
</div>
</div>
</body>
</html>
@RequestMapping("/deleteBook/{bookID}")
public String deleteBook(@PathVariable(bookID) int id){
bookService.deleteBookById(id);
return "redirect:allBook";
}
https://ask.csdn.net/$%7BpageContext.request.contextPath%7D/book/deleteBook/$%7BBooks.bookID%7D
我用RestFul风格写这个删除的 ${pageContext.request.contextPath}地址，返回到Controller中，运行一切正常，Mysql也会删除相应数据
但是 return "redirect:allBook"; 重定向回allBook 一直到 400
16-Nov-2021 20:20:16.787 警告 [http-nio-8080-exec-7] org.springframework.web.servlet.handler.AbstractHandlerExceptionResolver.logException Resolved [org.springframework.web.method.annotation.MethodArgumentTypeMismatchException: Failed to convert value of type 'java.lang.String' to required type 'int'; nested exception is java.lang.NumberFormatException: For input string: "allBook"]
