整合SSM框架

整合SSM

基本环境搭建

导入相关的pom依赖!

<dependencies>
<!--Junit-->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
</dependency>
<!--数据库驱动-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.18</version>
</dependency>
<!-- 数据库连接池 -->
<dependency>
<groupId>com.mchange</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.5.2</version>
</dependency>
<!--Servlet - JSP -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.2</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!--Mybatis-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.2</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>2.0.2</version>
</dependency>
<!--Spring-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.1.9.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.1.9.RELEASE</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.16.10</version>
</dependency>
</dependencies>

Maven资源过滤设置

<!--静态资源导出问题  -->
<build>
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
</resources>
</build>

建立基本结构和配置框架!

  • com.kuang.pojo

  • com.kuang.dao

  • com.kuang.service

  • com.kuang.controller

  • mybatis-config.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
</configuration>

applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd">
</beans>

Mybatis层编写

数据库配置文件 database.properties

我用的是8.0的mysql数据库连接版本,加cj同时要加上时区设置

jdbc.driver=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ssmbook?useSSL=false&useUnicode=true&characterEncoding=UTF-8&serverTimezone=GMT
jdbc.username=root
jdbc.password=fengge666

编写MyBatis的核心配置文件

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<settings>
<setting name="logImpl" value="STDOUT_LOGGING"/>
</settings>
<typeAliases>
<package name="com.xlf.pojo"/>
</typeAliases>
<mappers>
<mapper />
</mappers>
</configuration>

编写数据库对应的实体类

使用lombok插件!

package com.xlf.pojo;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
@Data
@AllArgsConstructor
@NoArgsConstructor
public class Books {
private int bookID;
private String bookName;
private int bookCounts;
private String details;
}

编写Dao层的 Mapper接口!

package com.xlf.dao;
import com.xlf.pojo.Books;
import org.apache.ibatis.annotations.Param;
import org.junit.runners.Parameterized;
import java.util.List;
public interface BookMapper {
//增加一本书
int addBook(Books books);
//删除一本书
int deleteBookById(@Param("bookId") int id);
//更新一本书
int updateBook(Books books);
//查询一本书
Books queryBookById(int id);
//查询全部的书
List<Books> queryAllBook();
//模糊搜索
List<Books> queryBookByName(String bookName);
}

编写接口对应的 Mapper.xml 文件

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.xlf.dao.BookMapper">
<insert id="addBook" parameterType="Books">
insert into books (bookName,bookCounts,details) value (#{bookName},#{bookCounts},#{details});
</insert>
<delete id="deleteBookById" parameterType="int">
delete from books where bookID=#{bookId};
</delete>
<update id="updateBook" parameterType="Books">
update books set bookName=#{bookName},bookCounts=#{bookCounts},details=#{details} where bookID=#{bookID};
</update>
<select id="queryBookById" parameterType="int" resultType="Books">
select * from books where bookID=#{id};
</select>
<select id="queryAllBook" resultType="Books">
select * from books;
</select>
<select id="queryBookByName" resultType="Books">
select * from books where bookName like concat('%','${bookName}','%');
</select>
</mapper>

编写Service层的接口和实现类

接口:

package com.xlf.service;
import com.xlf.pojo.Books;
import org.apache.ibatis.annotations.Param;
import java.util.List;
public interface BookService {
//增加一本书
int addBook(Books books);
//删除一本书
int deleteBookById(int id);
//更新一本书
int updateBook(Books books);
//查询一本书
Books queryBookById(int id);
//查询全部的书
List<Books> queryAllBook();
//模糊搜索
List<Books> queryBookByName(String bookName);
}

实现类:

package com.xlf.service;
import com.xlf.dao.BookMapper;
import com.xlf.pojo.Books;
import java.util.List;
public class BookServiceImpl implements BookService {
//service调dao层:组合Dao
private BookMapper bookMapper;
public void setBookMapper(BookMapper bookMapper) {
this.bookMapper = bookMapper;
}
public int addBook(Books books) {
return bookMapper.addBook(books);
}
public int deleteBookById(int id) {
return bookMapper.deleteBookById(id);
}
public int updateBook(Books books) {
return bookMapper.updateBook(books);
}
public Books queryBookById(int id) {
return bookMapper.queryBookById(id);
}
public List<Books> queryAllBook() {
return bookMapper.queryAllBook();
}
public List<Books> queryBookByName(String bookName) {
return bookMapper.queryBookByName(bookName);
}
}

Spring层编写

配置 Spring整合MyBatis ,我们这里数据源使用c3p0连接池;

我们去编写Spring整合Mybatis的相关的配置文件;spring-dao.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<!--关联数据库配置操作 -->
<context:property-placeholder location="classpath:database.properties" />
<!--2.连接池 -->
<!--数据库连接池
dbcp 半自动化操作 不能自动连接
c3p0 自动化操作(自动的加载配置文件 并且设置到对象里面)
-->
<bean id="dataSource">
<property name="driverClass" value="${jdbc.driver}" />
<property name="jdbcUrl" value="${jdbc.url}" />
<property name="user" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
<!-- c3p0连接池的私有属性 -->
<property name="maxPoolSize" value="30"/>
<property name="minPoolSize" value="10"/>
<!-- 关闭连接后不自动commit -->
<property name="autoCommitOnClose" value="false"/>
<!-- 获取连接超时时间 -->
<property name="checkoutTimeout" value="10000"/>
<!-- 当获取连接失败重试次数 -->
<property name="acquireRetryAttempts" value="2"/>
</bean>
<!--3.sqlSessionFactory -->
<bean id="sqlSessionFactory">
<property name="dataSource" ref="dataSource" />
<!--绑定Mybatis的配置文件 -->
<property name="configLocation" value="classpath:mybatis-config.xml" />
</bean>
<!--配置dao的接口扫描包,动态实现Dao接口可以注入到Spring容器中 -->
<bean>
<!-- 注入sqlSessionFactory-->
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
<!--要扫描的dao包 -->
<property name="basePackage" value="com.xlf.dao" />
</bean>
</beans>

Spring整合service层

spring-service.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
https://www.springframework.org/schema/context/spring-context.xsd">
<!-- 扫描service下的包-->
<context:component-scan base-package="com.xlf.service" />
<!-- 将我们所有的业务类,注入到Spring,可以通过配置或注解实现-->
<bean id="BookServiceImpl">
<property name="bookMapper" ref="bookMapper" />
</bean>
<!--声明式事务配置 -->
<bean id="transactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
</beans>

SpringMVC层

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
version="4.0">
<!-- DispatcherServlet-->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<!--一定要注意:我们这里加载的是总的配置文件,之前被这里坑了!-->
<param-value>classpath:applicationContext.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!--乱码过滤 -->
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>utf-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!--Session -->
<session-config>
<session-timeout>15</session-timeout>
</session-config>
</web-app>

spring-mvc.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context
https://www.springframework.org/schema/context/spring-context.xsd">
<!--1.注解驱动 -->
<mvc:annotation-driven />
<!--2.静态资源过滤 -->
<mvc:default-servlet-handler />
<!--3.扫描包:controller -->
<context:component-scan base-package="com.xlf.controller" />
<!--4.视图解析器 -->
<bean>
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>

Spring配置整合文件,applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd">
<import resource="classpath:spring-dao.xml" />
<import resource="classpath:spring-mvc.xml" />
<import resource="classpath:spring-service.xml" />
</beans>

配置文件,暂时结束!

Controller 和 视图层编写

BookController 类编写

package com.xlf.controller;
import com.xlf.pojo.Books;
import com.xlf.service.BookService;
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.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;
@Controller
@RequestMapping("/book")
public class BookController {
@Autowired
@Qualifier("BookServiceImpl")
private BookService bookService;
//查询全部的书籍,返回到一个书籍展示页面
@RequestMapping("/allBook")
public String list(Model model)
{
List<Books> list=bookService.queryAllBook();
model.addAttribute("list",list);
return "allBook";
}
//跳转到增加书籍页面
@RequestMapping("/toAddBook")
public String toAddPaper()
{
return "addBook";
}
@RequestMapping("/addBook")
public String addBook(Books books)
{
System.out.println("addBook=>"+books);
bookService.addBook(books);
return "redirect:/book/allBook";
}
@RequestMapping("/toUpdate")
public String toUpdatePaper(int id,Model model)
{
Books books=bookService.queryBookById(id);
model.addAttribute("QBook",books);
return "updateBook";
}
@RequestMapping("/updateBook")
public String updateBook(Books books)
{
System.out.println("updateBook->"+books);
bookService.updateBook(books);
return "redirect:/book/allBook";
}
@RequestMapping("/deleteBook/{bookId}")
public String deleteBook(@PathVariable("bookId") int id)
{
bookService.deleteBookById(id);
return "redirect:/book/allBook";
}
@RequestMapping("/queryBook")
public String queryBook(String queryBookName,Model model)
{
List<Books> list = bookService.queryBookByName(queryBookName);
if (list.size()==0)
{
list=bookService.queryAllBook();
model.addAttribute("error","未找到");
}
model.addAttribute("list",list);
return "allBook";
}
}

前台页面就不在展示了,过于简谱,重点在于理解ssm框架的整合流程

运行展示

展示结果

运行结果如下所示:

项目的结构图

总结

学习之后,狂神的配置流程很清晰,期间也出现过错误,有错才能进步,才知道这个报错的原因是啥?学到很多知识。日后还要继续学习ssm框架,打算学完后,将自己之前的项目用SSM框架整一遍。

熟练的应用这套框架,我个人还是喜欢用html页面来做,之后要尝试把jsp全部换成html来开发。

过几天,就要考毛概了,该开始准备预习了。。。。

博客园精华区
我还没有学会写个人说明!
上一篇

重启《炸弹人》?Konami高管表示相关消息很快将公布

下一篇

别人问你How are you,别再回复I‘m fine, thank you, and you啦!

你也可能喜欢

评论已经被关闭。

插入图片