Java 進階必備之ssm框架全面整合
1.導入依賴
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
</dependency>
<!--數據庫驅動-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.47</version>
</dependency>
<!-- 數據庫連接池 -->
<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>
<!--spring jdbc-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.1.9.RELEASE</version>
</dependency>
<!-- spring的核心依賴 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.1.9.RELEASE</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.12.1</version>
</dependency>
<!--json的依賴-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>1.1.10</version>
</dependency>
</dependencies>
<!-- <dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.10.0</version>
</dependency>-->
<!--靜態資源問題-->
<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>
2.創建實體類
package pojo;
public class books {
private int bookId;
private String bookName;
private int bookCounts;
private String detail;
public books(int bookId, String bookName, int bookCounts, String detail) {
this.bookId = bookId;
this.bookName = bookName;
this.bookCounts = bookCounts;
this.detail = detail;
}
public books() {
}
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;
}
}
3.寫dao層接口
這裡暫時隻有一個方法
package Dao;
import pojo.books;
import java.util.List;
public interface BooksMapper {
List<books> selectbooks();
}
4.寫mybatis核心配置文件和接口配置文件
這個是接口配置文件
<?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">
<!--把剛剛我們寫的接口配置進去-->
<mapper namespace="Dao.BooksMapper">
<select id="BooksMapper" resultType="pojo.books">
select * from books
</select>
</mapper>
mybatis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>
<!--把那個接口導進來-->
<mappers>
<package name="Dao"/>
</mappers>
</configuration>
5.用spring整合Mybatis層也就是Dao層
這個是spring整合Mybatis的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"
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">
<!-- 配置整合mybatis -->
<!-- 1.關聯數據庫文件 -->
<context:property-placeholder location="classpath:database.properties"/>
<!-- 2.數據庫連接池 -->
<!--數據庫連接池
dbcp 半自動化操作 不能自動連接
c3p0 自動化操作（自動的加載配置文件 並且設置到對象裡面）
-->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<!-- 配置連接池屬性 -->
<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連接池的私有屬性 -->
<property name="maxPoolSize" value="30"/>
<property name="minPoolSize" value="10"/>
<!-- 關閉連接後不自動commit -->
<property name="autoCommitOnClose" value="false"/>
<!-- 獲取連接超時時間 -->
<property name="checkoutTimeout" value="10000"/>
<!-- 當獲取連接失敗重試次數 -->
<property name="acquireRetryAttempts" value="2"/>
</bean>
<!-- 3.配置SqlSessionFactory對象 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 註入數據庫連接池 -->
<property name="dataSource" ref="dataSource"/>
<!-- 配置MyBaties全局配置文件:mybatis-config.xml -->
<property name="configLocation" value="classpath:mybatis-config.xml"/>
</bean>
<!--解釋 ：https://www.cnblogs.com/jpfss/p/7799806.html-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!-- 註入sqlSessionFactory -->
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
<!-- 4.配置掃描Dao接口包，動態實現Dao接口註入到spring容器中 -->
<property name="basePackage" value="Dao"/>
</bean>
</beans>
數據庫配置文件，這裡你們改一下數據庫就OK
jdbc.driver=com.mysql.jdbc.Driver jdbc.url=jdbc:mysql://localhost:3306/ssmbuild jdbc.username=root jdbc.password=root
6.spring整合Service層
寫接口和實現類
package Service;
import org.springframework.stereotype.Service;
import pojo.books;
import java.util.List;
public interface BooksService {
List<books> selectbooks();
}
實現類
@Service
public class BooksServicelmpl implements BooksService{
/*這裡是把Dao的接口引進來瞭因為Service層調用Dao層*/
@Autowired
private BooksMapper booksMapper;
public void setBooksMapper(BooksMapper booksMapper) {
this.booksMapper = booksMapper;
}
@Override
public List<books> selectbooks() {
return booksMapper.selectbooks();
}
}
寫spring配置文件
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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">
<context:component-scan base-package="Service"/>
<!-- <bean id="bookServicelmpl" class="service.bookServicelmpl">
<property name="bookMapper" ref="bookMapper"/>
</bean>-->
<!--因為serv層要調Dao層我們把數據源拿過來，如果這裡報紅就是因為沒有引入Dao的那個數據源-->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
</beans>
關聯spring配置文件，我們寫個總的配置文件到進去就ok
<?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-Service.xml"/>
<import resource="classpath:spring-Dao.xml"/>
</beans>
7.spring整合Conteoller層
<?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
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc
https://www.springframework.org/schema/mvc/spring-mvc.xsd">
<!-- 掃描web相關的bean -->
<context:component-scan base-package="Controller"/>
<!-- 1.開啟SpringMVC註解驅動 -->
<mvc:annotation-driven/>
<!-- 2.靜態資源默認servlet配置-->
<mvc:default-servlet-handler/>
<!-- 配置視圖解析器 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!-- 前綴 -->
<property name="prefix" value="/WEB-INF/jsp/"/>
<!-- 後綴 -->
<property name="suffix" value=".jsp"/>
</bean>
<mvc:annotation-driven>
<mvc:message-converters register-defaults="true">
<bean class="org.springframework.http.converter.StringHttpMessageConverter">
<constructor-arg value="UTF-8"/>
</bean>
<bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
<property name="objectMapper">
<bean class="org.springframework.http.converter.json.Jackson2ObjectMapperFactoryBean">
<property name="failOnEmptyBeans" value="false"/>
</bean>
</property>
</bean>
</mvc:message-converters>
</mvc:annotation-driven>
</beans>
寫Controller的類
@RestController
public class bookController {
@Autowired
private BooksService booksService;
public void setBooksService(BooksService booksService) {
this.booksService = booksService;
}
@RequestMapping("/books")
public List<books> selectbooks()
{
List<books> list = booksService.selectbooks();
return list;
}
}
把三個配置文件關聯
<?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-Service.xml"/>
<import resource="classpath:spring-Dao.xml"/>
<import resource="spring-mvc.xml"/>
</beans>
8.添加web支持
寫web.xml文件裡面都是死的
<?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>
<!--一定要註意:我們這裡加載的是總的配置文件，之前被這裡坑瞭！-->
<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>
<!--亂碼解決-->
<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過期時間-->
<session-config>
<session-timeout>15</session-timeout>
</session-config>
</web-app>
創建一個lib包把依賴導進去
添加工件測試
9.完整的目錄結構
到此這篇關於Java 進階必備之ssm框架全面整合的文章就介紹到這瞭,更多相關Java ssm框架內容請搜索WalkonNet以前的文章或繼續瀏覽下面的相關文章希望大傢以後多多支持WalkonNet！
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