springboot查询所有以及jsp页面
1、控制层：
@Controller @RequestMapping("emp") public class EmpController { @Autowired private EmpService empService; @GetMapping("findAll") public String findAll(Model model){ List<Emp> emps= empService.findAll(); model.addAttribute("emps",emps); return "ems/emplist"; } }
model类是将查到的东西展示到页面上
2、service业务层
public interface EmpService { List<Emp> findAll(); } //Service
@Transactional @Service public class EmpServiceImpl implements EmpService { @Autowired private EmpDAO empDAO; @Override public List<Emp> findAll() { return empDAO.findAll(); } } //ServiceImpl
3、dao层
@Repository public interface EmpDAO { public List<Emp> findAll() ; }
4、.xml文件
<?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.chinaunicom.ems.dao.EmpDAO"> <select id="findAll" resultType="Emp"> select * from t_emp </select> </mapper>
项目结构：
页面：
emplist.jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page language="java" pageEncoding="utf-8" isELIgnored="false" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>emplist</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<link rel="stylesheet" type="text/css" href="${pageContext.request.contextPath}/ems/css/style.css" />
</head>
<body>
<div id="wrap">
<div id="top_content">
<div id="header">
<div id="rightheader">
<p>
2009/11/20
<br />
</p>
</div>
<div id="topheader">
<h1 id="title">
<a href="#">main</a>
</h1>
</div>
<div id="navigation">
</div>
</div>
<div id="content">
<p id="whereami">
</p>
<h1>
Welcome!
</h1>
<table class="table">
<tr class="table_header">
<td>
ID
</td>
<td>
Name
</td>
<td>
Salary
</td>
<td>
Age
</td>
<td>
Operation
</td>
</tr>
<c:forEach items="${requestScope.emps}" var="emp">
<tr class="row1">
<td>
${emp.id}
</td>
<td>
${emp.name}
</td>
<td>
${emp.salary}
</td>
<td>
${emp.age}
</td>
<td>
<a href="emplist.jsp">delete emp</a> <a href="updateEmp.html">update emp</a>
</td>
</tr>
</c:forEach>
</table>
<p>
<input type="button" class="button" value="Add Employee" onclick="location='${pageContext.request.contextPath}/ems/addEmp.jsp'"/>
</p>
</div>
</div>
<div id="footer">
<div id="footer_bg">
ABC@126.com
</div>
</div>
</div>
</body>
</html>
login.jsp
<%@ page language="java" pageEncoding="utf-8" isELIgnored="false" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>login</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<link rel="stylesheet" type="text/css"
href="css/style.css" />
</head>
<body>
<div id="wrap">
<div id="top_content">
<div id="header">
<div id="rightheader">
<p>
2009/11/20
<br />
</p>
</div>
<div id="topheader">
<h1 id="title">
<a href="#">main</a>
</h1>
</div>
<div id="navigation">
</div>
</div>
<div id="content">
<p id="whereami">
</p>
<h1>
login
</h1>
<form action="${pageContext.request.contextPath}/user/login" method="post">
<table cellpadding="0" cellspacing="0" border="0"
class="form_table">
<tr>
<td valign="middle" align="right">
username:
</td>
<td valign="middle" align="left">
<input type="text" class="inputgri" name="username" />
</td>
</tr>
<tr>
<td valign="middle" align="right">
password:
</td>
<td valign="middle" align="left">
<input type="password" class="inputgri" name="password" />
</td>
</tr>
</table>
<p>
<input type="submit" class="button" value="Submit »" />
<input type="button" class="button" onclick="location.href='${pageContext.request.contextPath}/ems/register.jsp'" value="Regist »" />
</p>
</form>
</div>
</div>
<div id="footer">
<div id="footer_bg">
ABC@126.com
</div>
</div>
</div>
</body>
</html>
register.jsp
<%@ page language="java" pageEncoding="utf-8" isELIgnored="false" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>register</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<link rel="stylesheet" type="text/css" href="css/style.css" />
</head>
<body>
<div id="wrap">
<div id="top_content">
<div id="header">
<div id="rightheader">
<p>
2009/11/20
<br />
</p>
</div>
<div id="topheader">
<h1 id="title">
<a href="#">main</a>
</h1>
</div>
<div id="navigation">
</div>
</div>
<div id="content">
<p id="whereami">
</p>
<h1>
注册
</h1>
<form action="${pageContext.request.contextPath}/user/register" method="post">
<table cellpadding="0" cellspacing="0" border="0"
class="form_table">
<tr>
<td valign="middle" align="right">
用户名:
</td>
<td valign="middle" align="left">
<input type="text" class="inputgri" name="username" />
</td>
</tr>
<tr>
<td valign="middle" align="right">
真实姓名:
</td>
<td valign="middle" align="left">
<input type="text" class="inputgri" name="realname" />
</td>
</tr>
<tr>
<td valign="middle" align="right">
密码:
</td>
<td valign="middle" align="left">
<input type="password" class="inputgri" name="password" />
</td>
</tr>
<tr>
<td valign="middle" align="right">
性别:
</td>
<td valign="middle" align="left">
男
<input type="radio" class="inputgri" name="sex" value="男" checked="checked"/>
女
<input type="radio" class="inputgri" name="sex" value="女"/>
</td>
</tr>
<tr>
<td valign="middle" align="right">
验证码:
<img id="num" src="${pageContext.request.contextPath}/user/getImage" />
<a href="javascript:;" onclick="document.getElementById('num').src = '${pageContext.request.contextPath}/user/getImage?'+(new Date()).getTime()">换一张</a>
</td>
<td valign="middle" align="left">
<input type="text" class="inputgri" name="code" />
</td>
</tr>
</table>
<p>
<input type="submit" class="button" value="Submit »" />
</p>
</form>
</div>
</div>
<div id="footer">
<div id="footer_bg">
ABC@126.com
</div>
</div>
</div>
</body>
</html>
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