承接上文，在测试完成后，简单实现猴子信息的增删改查
1，编写公共页面，test.jsp，并且自带查询全部猴子信息功能
<%@ taglib prefix
="c" uri
="http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
<title>Title
</title
>
<%--BootStrap美化界面
--%>
<link href
="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel
="stylesheet""
>
</head
>
<body style
="background: aquamarine">
<div>
<div
class="container" align
="center">
<div
class="col-md-12 column">
<div
class="page-header" >
<h1>
<small>猴子信息
------显示列表
</small
>
</h1
>
</div
>
</div
>
</div
>
<div
class="container">
<div
class="col-md-4 column">
<a href
="${pageContext.request.contextPath}/t1/addMonkey">增加猴子
</a
>
</div
>
</div
>
<div
class="row clearfix">
<div
class="col-md-12 column">
<table
class="table table-hover table-striped">
<thead>
<tr>
<th>猴子id
</th
>
<th>猴子姓名
</th
>
<th>猴子地址
</th
>
<th>猴子email
</th
>
<th>操作
</th
>
</tr
>
</thead
>
<tbody>
<c
:forEach var
="monkey" items
="${list}">
<tr>
<td>$
{monkey
.id
}</td
>
<td>$
{monkey
.name
}</td
>
<td>$
{monkey
.address
}</td
>
<td>$
{monkey
.email
}</td
>
<td>
<a href
="/t1/toUpdate?id=${monkey.id}">修改
</a
>  
; |  
; <a href
="/t1/delete?id=${monkey.id}">删除
</a
>
</td
>
</tr
>
</c
:forEach
>
</tbody
>
</table
>
</div
>
</div
>
</div
>
</body
>
</html
>
2，一个简单地页面显示出来
3,控制层中MonkeyCon类
package controller
;
import org
.springframework
.beans
.factory
.annotation
.Autowired
;
import org
.springframework
.beans
.factory
.annotation
.Qualifier
;
import org
.springframework
.stereotype
.Controller
;
import org
.springframework
.ui
.Model
;
import org
.springframework
.web
.bind
.annotation
.RequestMapping
;
import pojo
.Monkey
;
import services
.MonkeyServicesImpl
;
import java
.util
.List
;
@Controller
@RequestMapping("/t1")
public class MonkeyCon {
@Autowired
@Qualifier("monkeyServicesImpl")
private MonkeyServicesImpl monkeyServices
;
@RequestMapping("/c1")
public String
qaq(Model model
){
List
<Monkey> list
= monkeyServices
.select();
model
.addAttribute("list",list
);
return "test";
}
@RequestMapping("/addMonkey")
public String
addMonkey(){
return "addMonkey";
}
@RequestMapping("/returnC1")
public String
returnC1(Monkey monkey
){
monkeyServices
.insert(monkey
);
return "redirect:/t1/c1";
}
@RequestMapping("/toUpdate")
public String
getMonkey(int id
,Model model
){
System
.out
.println("修改了" + id
+ "几本数");
Monkey monkey
= monkeyServices
.getMonkey(id
);
model
.addAttribute(monkey
);
return "update";
}
@RequestMapping("/updateOver")
public String
UpdateOver(Monkey monkey
){
int update
= monkeyServices
.update(monkey
);
System
.out
.println("猴子更新成功!");
return "redirect:/t1/c1";
}
@RequestMapping("/delete")
public String
delete(int id
){
int delete
= monkeyServices
.delete(id
);
System
.out
.println("删除成功！");
return "redirect:/t1/c1";
}
}
4，点击增加猴子超链接后增加猴子信息的页面
<%@ page contentType
="text/html;charset=UTF-8" language
="java" %>
<html>
<head style
="background: deepskyblue">
<title>增加猴子
</title
>
<link href
="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel
="stylesheet""
>
</head
>
<body>
<div
class="container" align
="center">
<div
class="col-md-12 column">
<div
class="page-header" >
<h3>更新猴子信息
</h3
>
</div
>
</div
>
</div
>
<div align
="center">
<form action
="/t1/returnC1" method
="get">
<div
class="form-group">
<label>猴子id
</label
>
<input type
="text" class="form-control" name
="id" placeholder
="请输入id" required
><br>
<label>猴子名称
</label
>
<input type
="text" class="form-control" name
="name" placeholder
="请输入名称" required
><br>
<label>猴子地址
</label
><br>
<input type
="text" class="form-control" name
="address" placeholder
="请输入地址" required
><br>
<label>猴子email
</label
><br>
<input type
="text" class="form-control" name
="email" placeholder
="请输入email" required
><br>
<input type
="submit" value
="添加">
</div
>
</form
>
</div
>
</body
>
</html
>
5,修改猴子信息的页面
思路：在每一个猴子信息后面中都有更新和删除键，在更新的超链接后面新增一个id参数，为猴子当前id，可以直接通过获取id获取数据库中猴子的全部信息，一次需要在业务层以及dao层中添加一个业务，即多写一个sql查询语句，通过id查询猴子所有的信息，在进行页面跳转时，交给controller中的MonkeyCon处理，然后将信息展示在页面上,供修改，在修改完成之后，再进行重定向到公共页面，公共页面自带查询功能！
public Monkey
getMonkey(int id
);
修改页面,在每个标签中加上一个value值，value值需要从MonkeyCon中通过Model携带，即可将当前要修改信息的猴子的信息展示出来,再修改完成之后，在将信息交给controller中的MonkeyCon，让修改的信息的值传给数据库中进行修改，再重定向到自带查询功能的公共页面中
<%@ page contentType
="text/html;charset=UTF-8" language
="java" %>
<html>
<head style
="background: aqua">
<title>修改猴子
</title
>
<link href
="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel
="stylesheet""
>
</head
>
<body>
<div
class="container" align
="center">
<div
class="col-md-12 column">
<div
class="page-header" >
<h3>修改猴子信息
</h3
>
</div
>
</div
>
</div
>
<div align
="center">
<form action
="/t1/updateOver" method
="get">
<div
class="form-group">
<label>猴子id
</label
>
<input type
="text" class="form-control" name
="id" value
=$
{monkey
.id
} placeholder
="请输入id" required
><br>
<label>猴子名称
</label
>
<input type
="text" class="form-control" name
="name" value
=$
{monkey
.name
} placeholder
="请输入名称" required
><br>
<label>猴子地址
</label
><br>
<input type
="text" class="form-control" name
="address" value
=$
{monkey
.address
} placeholder
="请输入地址" required
><br>
<label>猴子email
</label
><br>
<input type
="text" class="form-control" name
="email" value
=$
{monkey
.email
} placeholder
="请输入email" required
><br>
<input type
="submit" value
="修改">
</div
>
</form
>
</div
>
</body
>
</html
>
6，删除猴子
只需在猴子的超链接后携带参数id，再交给controller中的MonkeyCon处理,通过id删除数据库这的信息
7，一个简单的增删改查功能全部实现！
