初学b/s编程，花费了许多时间，进度颇慢！ 不过终于完成了一个简单的例子:
jsp代码
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %> <%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %> <%@ taglib prefix="spring" uri="http://www.springframework.org/tags" %> <%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %> <%--@elvariable id="books" type="java.util.List<com.lzf.mt.Books>"--%> <%--@elvariable id="book" type="com.lzf.mt.Books"--%> <html> <head> <H2>This is a test SCRIPT!</H2> <script type="text/javascript" src="/file/js/jquery-3.3.1.js"></script> <script type="text/javascript"> $(document).ready( function(){ $("button#btn1").click( function(){ if ($("h2").is(":hidden")){ $("h2").show(); } else{ $("h2").hide(); } } ); }); </script> </head> <body> <h2>您好！</h2> <c:choose> <c:when test="${fn:length(books) == 0}"> <i>没有书本</i> </c:when> <c:otherwise> <c:forEach items="${books}" var="book"> ID: ${book.id}: <a href="<c:url value="/books/viewone/${book.id}" />"><c:out value="${book.title}"/></a><br /> <a href="javascript:void(0)" class="none" onmousemove="getsingleBook(${book.id})"><c:out value="${book.title}"/></a> <br /> </c:forEach> </c:otherwise> </c:choose> <h2>当前查看的书本:${book.title}</h2> ISBN:<input type="text" class="singleook" id="isbn" readonly="readonly" /><br/> AUTOR:<input type="text" class="singleook" id="author" readonly="readonly" /><br/> PRICE:<input type="text" class="singleook" id="price" readonly="readonly" /><br/> PUB: <input type="text" class="singleook" id="publisher" readonly="readonly" /><br/> <button type="button" id="btn1">Click me</button> <button type="button" id="btn2" onclick="setValueTest()">设置值测试</button> <script type="text/javascript"> <!--为了显示下 --> function getsingleBook(bookid) { $.ajax({ url:"viewbook", data:{id:bookid}, success:function(result){ document.getElementById("isbn").value=result.isbn; document.getElementById("author").value=result.author; document.getElementById("price").value=result.price; document.getElementById("publisher").value=result.publisher; } }); } function setValueTest(){ document.getElementById("isbn").value="good"; } </script> </body> </html>
cotroller代码
package com.lzf.mt; import java.util.HashMap; import java.util.List; import java.util.Map; import javax.servlet.http.HttpServletRequest; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Qualifier; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.servlet.ModelAndView; import com.lzf.mt.Books; import com.lzf.mt.Ibooks; @Controller @RequestMapping("/books") public class BookController { @Autowired @Qualifier("Primarybookservice") Ibooks bookservice; /** * 返回单个书本的信息 * @param request * @return */ @RequestMapping("/viewbook") @ResponseBody public Map<String,Object> getMailDetailById(HttpServletRequest request){ long bookid=Long.valueOf(request.getParameter("id")); Books book= bookservice.getByPk(bookid); Map<String,Object> bookinfo = new HashMap<String, Object>(); bookinfo.put("isbn", book.getIsbn()); bookinfo.put("author", book.getAuthor()); bookinfo.put("price", book.getPrice()); bookinfo.put("publisher", book.getPublisher()); return bookinfo; } @RequestMapping("/viewall") public ModelAndView listallBooks(Map<String, Object> model){ ModelAndView mv=new ModelAndView(); List<Books> books= bookservice.getAllBooks(); model.put("books",books); mv.setViewName("book"); return mv; } /** * 如何才能够看到原来的数据，而仅仅是刷新当前的资料！ * @param model * @param id * @return */ @RequestMapping("/viewone/{bookid}") public ModelAndView listallBooks(Map<String, Object> model, @PathVariable("bookid") long id){ ModelAndView mv=new ModelAndView(); Books book= bookservice.getByPk(id); model.put("book",book); mv.setViewName("book"); return mv; } }
剩下的就是慢慢熟练罢了！