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SSM整合
1.构建数据库
CREATE DATABASE IF NOT EXISTS ssmbuild;
USE ssmbuild;
CREATE TABLE books(
bookID INT(10) PRIMARY KEY NOT NULL AUTO_INCREMENT,
bookName VARCHAR(100) NOT NULL,
bookCounts INT(11) NOT NULL,
detail VARCHAR(200) NOT NULL
);
INSERT INTO books VALUES(1,'Java',1,'从入门到放弃');
INSERT INTO books VALUES(2,'MySQL',10,'从删库到跑路');
INSERT INTO books VALUES(3,'Linux',5,'从入门到入土');
SELECT * FROM books;
2.创建maven项目
2.1导入依赖
<dependencies>
<!--junit-->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
</dependency>
<!--mysql数据库驱动-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.37</version>
</dependency>
<!--druid数据库连接池-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.9</version>
</dependency>
<!--servlet-->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
</dependency>
<!--jsp-->
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.1</version>
</dependency>
<!--Mybatis-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.2</version>
</dependency>
<!--Mybatis整合Spring-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>2.0.2</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.0.0.RELEASE</version>
</dependency>
<!--Spring-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.0.0.RELEASE</version>
</dependency>
<!--JSON数据解析-->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.11.0</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.11.0</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.11.0</version>
</dependency>
</dependencies>
2.2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>
3.配置数据库
4.建立包结构
4.1配置mybatis-config.xml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>
</configuration>
4.2配置applicationContex.xml文件
<?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>
4.3Mybatis关联数据库
4.3.1新建database.properties文件
jdbc.driver=com.mysql.jdbc.Driver
# 如果使用mysql8.0以上版本，注意设置时区
# url: jdbc:mysql://localhost:3306/test?serverTimezone=UTC&useUnicode=true&characterEncoding=utf8&useSSL=true
jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?useSSL=true&useUnicode=true&characterEncoding=utf8
jdbc.username=root
jdbc.password=mysql
4.3.2给mybatis配置数据源，整合Spring后交给Spring去做
4.3.3配置mybatis-config.xml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>
<!--配置数据源 Spring去做-->
<!--
指定包下别名，方便parameterType的填写
默认情况下时JavaBean的首字母小写
-->
<typeAliases>
<package name="pers.lele.pojo"/>
</typeAliases>
</configuration>
5.建实体类
import java.io.Serializable;
public class Books implements Serializable {
private int bookID;
private String bookName;
private int bookCounts;
private String detail;
public int getBookID() {
return bookID;
}
public void setBookID(int bookID) {
this.bookID = bookID;
}
public String getBookName() {
return bookName;
}
public void setBookName(String bookName) {
this.bookName = bookName;
}
public int getBookCounts() {
return bookCounts;
}
public void setBookCounts(int bookCounts) {
this.bookCounts = bookCounts;
}
public String getDetail() {
return detail;
}
public void setDetail(String detail) {
this.detail = detail;
}
@Override
public String toString() {
return "Books{" +
"bookID=" + bookID +
", bookName='" + bookName + '\'' +
", bookCounts=" + bookCounts +
", detail='" + detail + '\'' +
'}';
}
}
6.dao层设计
6.1编写BookMapper接口
import pers.lele.pojo.Books;
import java.util.List;
public interface BookMapper {
//增加
public int addBook(Books book);
//删除
public int deleteBooke(int id);
//修改
public int updateBook(Books books);
//查询一本书
public Books queryBookById(int id);
//查询全部书籍
public List<Books> queryAllBook();
}
6.2编写BookMapper.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">
<!--绑定接口-->
<mapper namespace="pers.lele.dao.BookMapper">
<insert id="addBook" parameterType="Books">
insert into ssmbuild.books(bookName, bookCounts, detail)
values (#{bookName},#{bookCounts},#{detail})
</insert>
<delete id="deleteBooke" parameterType="int">
delete from ssmbuild.books where bookID = #{bookID}
</delete>
<update id="updateBook" parameterType="Books" >
update ssmbuild.books set bookName = #{bookName},
bookCounts=#{bookCounts},detail=#{detail}
where bookID=#{bookID}
</update>
<select id="queryBookById" resultType="Books">
select * from ssmbuild.books where bookID = #{bookID}
</select>
<select id="queryAllBook" resultType="Books">
select * from ssmbuild.books;
</select>
</mapper>
6.3将BookMapper.xml绑定到mybatis-config.xml文件中
<?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>
<!--配置数据源 Spring去做-->
<!--
指定包下别名，方便parameterType的填写
默认情况下时JavaBean的首字母小写
-->
<typeAliases>
<package name="pers.lele.pojo"/>
</typeAliases>
<mappers>
<mapper class="pers.lele.dao.BookMapper"/>
</mappers>
</configuration>
7.编写业务层及实现类
import pers.lele.pojo.Books;
import java.util.List;
public interface BookService {
//增加
public int addBook(Books books);
//删除
public int deleteBooke(int id);
//修改
public int updateBook(Books books);
//查询一本书
public Books queryBookById(int id);
//查询全部书籍
public List<Books> queryAllBook();
}
import pers.lele.dao.BookMapper;
import pers.lele.pojo.Books;
import java.util.List;
public class BookServiceImpl implements BookService{
private BookMapper bookMapper;
public void setBookMapper(BookMapper bookMapper) {
this.bookMapper = bookMapper;
}
public int addBook(Books books) {
return bookMapper.addBook(books);
}
public int deleteBooke(int id) {
return bookMapper.deleteBooke(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();
}
}
8.Spring整合dao层
<?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">
<!--关联数据库配置文件-->
<context:property-placeholder location="classpath: database.properties"/>
<!--连接池配置-->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
<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>
<!--sqlSessionFactory-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<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接口扫描包，动态的实现了Dao接口可以注入到Spring容器中-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!--注入sqlSessionFactory-->
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
<!--要扫描的包-->
<property name="basePackage" value="pers.lele.dao"/>
</bean>
</beans>
9.Spring整合Service层
<?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">
<!--扫描service下的包-->
<context:component-scan base-package="pers.lele.service"/>
<!--将所有的业务类注入到Spring-->
<bean id="bookServiceImpl" class="pers.lele.service.BookServiceImpl">
<property name="bookMapper" ref="bookMapper"/>
</bean>
<!--事务-->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<!--注入数据源-->
<property name="dataSource" ref="dataSource"/>
</bean>
</beans>
10.增加web项目支持
11.配置web.xml文件
<?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">
<!--配置DispatchServlet-->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<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>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>
<!--Session过期时间-->
<session-config>
<session-timeout>15</session-timeout>
</session-config>
</web-app>
12.Spring整合mvc
<?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
http://www.springframework.org/schema/context/spring-context.xsd">
<!--注解驱动-->
<mvc:annotation-driven/>
<!--静态资源过滤-->
<mvc:default-servlet-handler/>
<!--扫描包-->
<context:component-scan base-package="pers.lele.controller"/>
<!--视图解析器-->
<bean id=" " class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp"/>
<property name="suffix" value=".jsp"/>
</bean>
</beans>
13.编写Controller层
@Controller
@RequestMapping("/book")
public class BookController {
@Autowired
@Qualifier("bookServiceImpl")
private BookService bookService;
//查询全部的书籍，并且返回到一个书籍展示页面
@RequestMapping("/allBook")
public void list(HttpServletResponse response) throws IOException {
System.out.println("访问到了");
List<Books> books = bookService.queryAllBook();
ObjectMapper mapper = new ObjectMapper();
response.setContentType("text/html;charset=utf-8");
mapper.writeValue(response.getWriter(),books);
}
}
14.编写html页面
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>图书城</title>
<script src="js/jquery-3.2.1.js"></script>
<script>
$(function () {
$("#queryAllBooks").click(function () {
$.get("/book/allBook", function (data) {
var tableHtml = "";
for (var i = 0; i < data.length; i++) {
tableHtml += "<tr>";
tableHtml += "<td>" + data[i].bookID + "</td>>";
tableHtml += "<td>" + data[i].bookName + "</td>>";
tableHtml += "<td>" + data[i].bookCounts + "</td>>";
tableHtml += "<td>" + data[i].detail + "</td>>";
tableHtml += "</tr>";
}
$("#table").html(tableHtml);
}, "json");
});
});
</script>
</head>
<body>
<button id="queryAllBooks">查询所有书籍</button>
<table id="table">
<tr>
<th>书籍编号</th>
<th>书籍名称</th>
<th>书籍数量</th>
<th>书记描述</th>
</tr>
<tr>
<td id="bookID"></td>
<td id="bookName"></td>
<td id="bookCounts"></td>
<td id="detail"></td>
</tr>
</table>
</body>
</html>
15展示
16.结构
