ssm(springMVC + spring+MyBatis) 小例
整体环境参见本人另一文：http://blog.csdn.net/jiangyu1013/article/details/51983360
此工程访问入口为index.jsp页面. 欢迎java朋友指导我的学习。个人QQ：283810473.
工程结构：
1. jap 页面：
index.jsp ：
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>去确定页面</title> </head> <body> <a href="javascript:<jsp:forward page='WEB-INF/views/sure.jsp'/>"></a> </body> </html>
sure.jsp ：
<%@ page language="java" contentType="text/html;charset=UTF-8" pageEncoding="UTF-8"%>
<% String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<!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>确定页面</title>
<script type="text/javascript" src="js/jquery-1.12.0.min.js"></script>
<script type="text/javascript" src="js/jquery.watermark.min.js"></script>
<script language="javascript">
function doSubmit(){
$.ajax({
url:"<%=basePath%>sure/to",
type:"post",
data:$("#formMark").serialize(),
success:function(data){
if(data){
window.location.href="<%=basePath%>sure/to";
}else{
alert(data);
}
},
error:function(){alert("有异常!");}
});
}
</script>
</head>
<body>
<div>
<div><span>确定页面</span></div>
<form id="formMark">
<table>
<tr>
<td width="15%">
你想知道book表有多少条数据吗？
</td>
</tr>
</table>
<div>
<input type="button" style="margin-left:15px;" value="想" onclick="doSubmit()"/>
</div>
</form>
</div>
</body>
</html>
result.jsp ：
<%@ page language="java" contentType="text/html;charset=UTF-8" pageEncoding="UTF-8"%>
<%-- <% String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%> --%>
<%-- <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%> --%>
<!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>结果页面</title>
</head>
<body>
<div>
<div ><span>结果页面</span></div>
<table >
<tr>
<td>
book表数据总条数为：${count} 条。
</td>
</tr>
</table>
</div>
</body>
</html>
stillResult.jsp ：
<%@ page language="java" contentType="text/html;charset=UTF-8" pageEncoding="UTF-8"%><% String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%><!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>结果页面</title> <base href="<%=basePath%>"> </head> <body> <div> <div ><span>结果页面</span></div> <table > <tr> <td> 这是still页面。 </td> </tr> </table> </div><pre name="code" class="html"></body></html>
2.代码部分：
SureController.java
package com.controller;
import javax.annotation.Resource;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import com.service.SureServiceImpl;
@Controller
@RequestMapping("/sure")
public class SureController {
@Resource
private SureServiceImpl sureService;
@RequestMapping("/to")
public String getCount(ModelMap model) throws Exception {
int count = sureService.getCount();
model.addAttribute("count",count);
return "result";
}
@RequestMapping(value="/still")
public String still(ModelMap model) throws Exception {
return "stillResult";
}
}
ISureService.java
package com.service;
public interface ISureService {
public int getCount();
}
SureServiceImpl.java
package com.service;
import javax.annotation.Resource;
import org.springframework.stereotype.Service;
import com.mapper.SureMapper;
@Service("sureService")
public class SureServiceImpl implements ISureService {
@Resource
private SureMapper sureMapper;
public int getCount() {
return sureMapper.getTheCount();
}
}
SureMapper.java
package com.mapper;
public interface SureMapper {
public int getTheCount();
}
SureMapper.xml
表名选择任意数据库已经有的表即可。
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.mapper.SureMapper" >
<select id="getTheCount" resultType="java.lang.Integer">
select count(1) from BOOK
</select>
</mapper>