SpringBoot2整合SSM框架详解

<>开发环境

* 开发工具：Eclipse + STS插件
* JDK版本：9.0.4
* MySQL版本：8.0.12
* Spring Boot版本：2.1.2
<>1、创建Spring Boot工程

<> （1）工程创建过程

<> （2）工程目录结构

   注：工程创建完成后，缺少的文件夹需手动补全。

<> （3）添加额外依赖工程

  所依赖的jar包和插件由工程创建过程中所选的组件自动生成。由于本工程需要用到JSP视图，需要在pom.xml中手动添加额外依赖：
<!-- 设置tomcat支持jsp --> <dependency> <groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId> </dependency> <!-- 定义jsp标准标签库包 -->
<dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> </
dependency>
<> （4）配置application.yml文件

  注：Spring Boot工程默认的配置文件为application.properties，可选中配置文件，单击鼠标右键，选中Convert
.properties to .yaml后，转为application.yml文件。

<>application.yml：
#服务器配置 server: port: 8090 #spring配置 spring: #数据源配置 datasource: #配置mysql数据库
driver-class-name: com.mysql.cj.jdbc.Driver url: jdbc:mysql:
//localhost/customer_manager?serverTimezone=CTT username: root password: 1314
#配置dbcp连接池 dbcp2: connection-init-sqls: characterEncoding=utf-8 initial-size: 5
max-idle: 100 max-wait-millis: 10000 min-idle: 5 test-on-borrow: true
test-while-idle: true time-between-eviction-runs-millis: 27800 #配置JSP视图 mvc:
view: prefix: /WEB-INF/jsp/ suffix: .jsp #配置mybatis框架 mybatis: #定义Mapper接口映射文件位置
mapper-locations: classpath:mapper/*.xml #定义实体类位置 type-aliases-package:
com.ming.ssm.pojo#控制台打印sql语句 logging: level: com.ming.ssm.mapper: debug
<>2、持久层实现

<>customer_manager数据库中customer表的构建：

<>Customer：
package com.ming.ssm.pojo; import java.io.Serializable; /** *
数据库(customer_manager)中表(customer)所对应的实体类(Customer) * @author Mr.F * */ public
class Customer implements Serializable{ private static final long
serialVersionUID= 1L; private Long c_id; private String c_name; private String
c_password; private String c_address; private String c_phone; private String
c_email; public Long getC_id() { return c_id; } public void setC_id(Long c_id) {
this.c_id = c_id; } public String getC_name() { return c_name; } public void
setC_name(String c_name) { this.c_name = c_name; } public String getC_password()
{ return c_password; } public void setC_password(String c_password) { this.
c_password= c_password; } public String getC_address() { return c_address; }
public void setC_address(String c_address) { this.c_address = c_address; }
public String getC_phone() { return c_phone; } public void setC_phone(String
c_phone) { this.c_phone = c_phone; } public String getC_email() { return c_email
; } public void setC_email(String c_email) { this.c_email = c_email; } }
<>CustomerMapper：
package com.ming.ssm.mapper; import java.util.List; import org.apache.ibatis.
annotations.Mapper; import com.ming.ssm.pojo.Customer; /** *
持久层实现Mybatis框架中的Mapper接口，声名对数据库的操作方法 * @author Mr.F * */ @Mapper public
interface CustomerMapper { List<Customer> findAllCustomer(); //查询所有客户信息 }
<>CustomerMapper.xml：
<?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"> <!-- 实现Mapper接口对应的映射文件 @author
Mr.F --> <!--nameapce:名称空间,用于隔离sql语句,必须是所对应Mapper接口的全路径名(包名.接口名)--> <mapper
namespace="com.ming.ssm.mapper.CustomerMapper"> <!-- id:必须是所对应接口中相应的方法名;
resultType:方法返回的结果数据类型。 --> <select id="findAllCustomer" resultType="Customer">
SELECT * FROM `customer`</select> </mapper>
<>3、业务层实现

<>CustomerService：
package com.ming.ssm.service; import java.util.List; import com.ming.ssm.pojo.
Customer; /** * 定义业务层接口 * @author Mr.F * */ public interface CustomerService {
List<Customer> findAllCustomer(); //查询所有客户信息 }
<>CustomerServiceImpl：
package com.ming.ssm.service.impl; import java.util.List; import org.
springframework.beans.factory.annotation.Autowired; import org.springframework.
stereotype.Service; import com.ming.ssm.mapper.CustomerMapper; import com.ming.
ssm.pojo.Customer; import com.ming.ssm.service.CustomerService; /** *
实现业务层的CustomerService接口 * @author Mr.F * */ @Service public class
CustomerServiceImpl implements CustomerService{ @Autowired private
CustomerMapper customerMapper; @Override public List<Customer> findAllCustomer()
{ return customerMapper.findAllCustomer(); } }
<>4、控制层实现

<>CustomerController：
package com.ming.ssm.controller; import java.util.List; import org.
springframework.beans.factory.annotation.Autowired; import org.springframework.
stereotype.Controller; import org.springframework.ui.Model; import org.
springframework.web.bind.annotation.RequestMapping; import com.ming.ssm.pojo.
Customer; import com.ming.ssm.service.CustomerService; /** * 定义控制层类 * @author
Mr.F * */ @Controller public class CustomerController { @Autowired private
CustomerService customerService; @RequestMapping("findAll") public String
findAll(Model model) { List<Customer> list = customerService.findAllCustomer();
model.addAttribute("list", list); return "index"; } }
<>index.jsp：
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/core"
prefix="c"%><!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>客户管理页面</title> </head>
<body> <h2 align="center">客户管理系统</h2> <table border="1px" align="center" width="
700px"> <tr align="center"> <td>客户ID</td> <td>客户姓名</td> <td>客户密码</td> <td>客户地址</
td> <td>客户手机</td> <td>客户邮箱</td> </tr> <c:forEach items="${list}" var="c"> <tr
align="center"> <td>${c.c_id}</td> <td>${c.c_name}</td> <td>${c.c_password}</td>
<td>${c.c_address }</td> <td>${c.c_phone }</td> <td>${c.c_email }</td> </tr> </
c:forEach> </table> </body> </html>
<>5、工程测试

  在该工程下找到Spring Boot入口类：SpringbootCustomerApplication.java，单击鼠标右键，选中Run As
-->Spring Boot App运行。在浏览器地址栏访问http://localhost:8090/findAll，其结果如下：

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