发布于2021-06-08 10:54 阅读(115) 评论(0) 点赞(18) 收藏(2)
在学完MyBatis、Spring、SpringMVC后可以尝试整合SSM使其结构更加完整思路更加清晰,但整合过程中会有很多Bug,我讲整合的思路写了下来供大家参考
我创建了一个名为SSM的数据库,在数据库中创建了一个book表,其中包括图书编号,图书名称,图书作者,图书价格等字段
CREATE TABLE `book` (
`book_id` INT(11) NOT NULL AUTO_INCREMENT,
`book_name` VARCHAR(20) DEFAULT NULL,
`book_price` DOUBLE DEFAULT NULL,
`book_author` VARCHAR(20) DEFAULT NULL,
PRIMARY KEY (`book_id`)
) ENGINE=INNODB DEFAULT CHARSET=utf8;
INSERT INTO `book`(book_name,book_price,book_author) VALUES ( 'Java编程思想', '68', 'zhangsan');
INSERT INTO `book`(book_name,book_price,book_author) VALUES ('网页设计', '46', 'lisi');
INSERT INTO `book`(book_name,book_price,book_author) VALUES ('数据库设计', '28', 'wangwu');
SELECT * FROM book
<dependencies>
<!-- 测试类-->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<!--mysql -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.46</version>
</dependency>
<!-- mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.2</version>
</dependency>
<!--springmvc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.2.4.RELEASE</version>
</dependency>
<!--jdbc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.2.4.RELEASE</version>
</dependency>
<!--AOP -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.6.8</version>
</dependency>
<!-- jsp-->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jsp-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
<!--servlet -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<!--mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>2.0.4</version>
</dependency>
<!-- 打印日志-->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<!--jstl -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>1.1.2</version>
</dependency>
</dependencies>
package com.blb.entity;
public class Book {
private Integer bookId ;
private String bookName ;
private Double bookPrice ;
private String bookAuthor ;
public Integer getBookId() {
return bookId;
}
public void setBookId(Integer bookId) {
this.bookId = bookId;
}
public String getBookName() {
return bookName;
}
public void setBookName(String bookName) {
this.bookName = bookName;
}
public Double getBookPrice() {
return bookPrice;
}
public void setBookPrice(Double bookPrice) {
this.bookPrice = bookPrice;
}
public String getBookAuthor() {
return bookAuthor;
}
public void setBookAuthor(String bookAuthor) {
this.bookAuthor = bookAuthor;
}
@Override
public String toString() {
return "Book{" +
"bookId=" + bookId +
", bookName='" + bookName + '\'' +
", bookPrice=" + bookPrice +
", bookAuthor='" + bookAuthor + '\'' +
'}';
}
public Book(Integer bookId, String bookName, Double bookPrice, String bookAuthor) {
this.bookId = bookId;
this.bookName = bookName;
this.bookPrice = bookPrice;
this.bookAuthor = bookAuthor;
}
public Book() {
}
}
package com.blb.mapper;
import com.blb.entity.Book;
import java.util.List;
public interface BookMapper {
public int addBook(Book book);
public int updateBook(Book book);
public int deleteBook(int bookId);
public List<Book> selectBooks();
public Book selectBookById(int bookId);
}
接口
package com.blb.server;
import com.blb.entity.Book;
import java.util.List;
public interface BookServer {
public int addBook(Book book);
public int updateBook(Book book);
public int deleteBook(int bookId);
public List<Book> selectBooks();
public Book selectBookById(int bookId);
}
实现类
package com.blb.server;
import com.blb.entity.Book;
import com.blb.mapper.BookMapper;
import org.springframework.beans.factory.annotation.Autowired;
import java.util.List;
public class BookServerImpl implements BookServer{
@Autowired
private BookMapper bookMapper ;
@Override
public int addBook(Book book) {
return bookMapper.addBook(book);
}
@Override
public int updateBook(Book book) {
return bookMapper.updateBook(book);
}
@Override
public int deleteBook(int bookId) {
return bookMapper.deleteBook(bookId);
}
@Override
public List<Book> selectBooks() {
return bookMapper.selectBooks();
}
@Override
public Book selectBookById(int bookId) {
return bookMapper.selectBookById(bookId);
}
}
package com.blb.controller;
public class BookController {
}
jdbc.properties
jdbc.Driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ssm?useUnicode=true&characterEncoding=UTF-8
jdbc.username=root
jdbc.password=root
新建4个Spring的配置文件spring-controller.xml、spring-server.xml、spring-mapper.xml,application.xml
其中application.xml中
<?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="spring-server.xml"/>
<import resource="spring-controller.xml"/>
<import resource="spring-mapper.xml"/>
</beans>
在Resources 创建一个与BookMapper.java同级目录下面创建一个BookMapper.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">
<mapper namespace="com.blb.mapper.BookMapper">
<select id="selectBooks" resultType="book">
select * from book
</select>
<insert id="addBook" parameterType="book" >
insert into book(book_name,book_price,book_author) values (#{bookName},#{bookPrice},#{bookAuthor});
</insert>
</mapper>
增加setting属性跟typeAliases标签
<?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">
<!-- 根标签 -->
<configuration>
<settings>
<setting name="mapUnderscoreToCamelCase" value="true"/>
<setting name="logImpl" value="LOG4J"/>
</settings>
<!-- 取别名-->
<typeAliases>
<package name="com.blb.ssm.bean"/>
</typeAliases>
</configuration>
<?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
">
<context:property-placeholder location="classpath:jdbc.properties"></context:property-placeholder>'
<!-- 包扫描-->
<context:component-scan base-package="com.blb.mapper"/>
<!--配置数据源 -->
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${jdbc.Driver}"/>
<property name="url" value="${jdbc.url}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
</bean>
<!-- 创建Sqlsession-->
<bean id="sessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<!-- 绑定mybatis配置文件 -->
<property name="configLocation" value="classpath:mybatis.xml"/>
</bean>
<!-- 扫描映射器-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.blb.mapper"/>
</bean>
</beans>
<?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" xmlns:tx="http://www.springframework.org/schema/tx"
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 http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<!-- 包扫描-->
<context:component-scan base-package="com.blb.server"></context:component-scan>
<!-- 声明式事务 -->
<import resource="spring-mapper.xml"></import>
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>
<!--事务的注解驱动-->
<tx:annotation-driven transaction-manager="transactionManager"></tx:annotation-driven>
</beans>
package com.blb.server;
import com.blb.entity.Book;
import com.blb.mapper.BookMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import java.util.List;
@Service("bookServer")
public class BookServerImpl implements BookServer{
@Autowired
private BookMapper bookMapper ;
@Transactional//直接修饰在类上,表示所有方法都加上事务
@Override
public int addBook(Book book) {
return bookMapper.addBook(book);
}
@Transactional
@Override
public int updateBook(Book book) {
return bookMapper.updateBook(book);
}
@Transactional
@Override
public int deleteBook(int bookId) {
return bookMapper.deleteBook(bookId);
}
@Override
public List<Book> selectBooks() {
return bookMapper.selectBooks();
}
@Override
public Book selectBookById(int bookId) {
return bookMapper.selectBookById(bookId);
}
}
<?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">
<!--设置DispatcherServle-->
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:application.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!--字符过滤-->
<filter>
<filter-name>characterEncodingFilter</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>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
<?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"
xmlns:mvc="http://www.springframework.org/schema/mvc"
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 http://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc.xsd">
<!--自动扫描-->
<context:component-scan base-package="com.blb.controller"></context:component-scan>
<!--注解驱动-->
<mvc:annotation-driven/>
<!--静态资源过滤-->
<mvc:default-servlet-handler/>
<!-- 视图解析器-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"/>
<property name="suffix" value=".jsp"/>
</bean>
</beans>
package com.blb.controller;
import com.blb.entity.Book;
import com.blb.server.BookServer;
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 java.util.List;
@Controller
@RequestMapping("/book")
public class BookController {
@Autowired
private BookServer bookServer;
@RequestMapping("/queryAllBook")
public String quert(Model model)
{
List<Book> bookList = bookServer.selectBooks();
model.addAttribute("bookList",bookList);
return "hello";
}
}
项目优化正在更新中
作者:java之恋
链接:http://www.javaheidong.com/blog/article/219292/4654aa93d4d52f242b8b/
来源:java黑洞网
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