SpringBoot+SSM的初步整合

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第一次发表博客，写的不好欢迎指出，一起学习。整个整合过程借鉴了大量的博客，再次先感谢前辈们的无私奉献。

工具idea maven

因为不知道是我的maven位置有问题还是什么，我通过idea自身的工具创建springboot项目会导致我的jar包都在c盘的.m2目录下，对于有轻微强迫症的我，选择了使用maven然后升为springboot

然后在pom.xml中加入

<?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0"         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">    <modelVersion>4.0.0</modelVersion>    <groupId></groupId>    <artifactId>login</artifactId>    <version>1.0-SNAPSHOT</version>    <parent>        <groupId>org.springframework.boot</groupId>        <artifactId>spring-boot-starter-parent</artifactId>        <version>1.4.0.RELEASE</version>        <relativePath/> <!-- lookup parent from repository -->    </parent>    <properties>        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>        <java.version>1.8</java.version>    </properties>    <dependencies>        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-web</artifactId>        </dependency>        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-test</artifactId>            <scope>test</scope>        </dependency>        <!--包括依赖-->        <dependency>            <groupId>org.mybatis.spring.boot</groupId>            <artifactId>mybatis-spring-boot-starter</artifactId>            <version>1.2.0</version>        </dependency>        <dependency>            <groupId>org.mybatis.generator</groupId>            <artifactId>mybatis-generator-core</artifactId>            <version>1.3.2</version>        </dependency>        <!--druid数据库连接池-->        <dependency>            <groupId>com.alibaba</groupId>            <artifactId>druid</artifactId>            <version>1.0.26</version>        </dependency>        <dependency>            <groupId>mysql</groupId>            <artifactId>mysql-connector-java</artifactId>            <version>5.1.6</version>            <scope>runtime</scope>        </dependency>        <!--json格式-->        <dependency>            <groupId>com.alibaba</groupId>            <artifactId>fastjson</artifactId>            <version>1.2.4</version>        </dependency>    </dependencies>    <build>        <plugins>            <plugin>                <groupId>org.springframework.boot</groupId>                <artifactId>spring-boot-maven-plugin</artifactId>            </plugin>        </plugins>        <resources>            <resource>                <directory>src/main/java</directory>            </resource>            <resource>                <directory>src/main/resources</directory>            </resource>        </resources>    </build></project>

目录结构

application.properties是主要的配置文件，为了后期的方便一般不在里面写东西

application-dev.properties是开发模式在application.properties指明选择开发模式

spring.profiles.active=dev

application-dev.properties的配置文件

#数据库的配置spring.datasource.type=com.alibaba.druid.pool.DruidDataSource#mysql的版本太低 需要降低springboot的版本spring.datasource.driver-class-name=com.mysql.jdbc.Driverspring.datasource.url=jdbc:mysql://localhost:3306/loginspring.datasource.username=rootspring.datasource.password=root# 下面为连接池的补充设置，应用到上面所有数据源中# 初始化大小，最小，最大spring.datasource.initialSize=5spring.datasource.minIdle=5spring.datasource.maxActive=20# 配置获取连接等待超时的时间spring.datasource.maxWait=60000# 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒spring.datasource.timeBetweenEvictionRunsMillis=60000# 配置一个连接在池中最小生存的时间，单位是毫秒spring.datasource.minEvictableIdleTimeMillis=300000#验证数据库连接的有效性spring.datasource.validationQuery=SELECT 1spring.datasource.testWhileIdle=truespring.datasource.testOnBorrow=falsespring.datasource.testOnReturn=false# 打开PSCache，并且指定每个连接上PSCache的大小  PSCache对Oracle的帮助很大spring.datasource.poolPreparedStatements=falsespring.datasource.maxPoolPreparedStatementPerConnectionSize=0#mybatis的别名mybatis.type-aliases-package=classpath:com.yjp.springb.*.pojo

下面配置数据源，springboot只是想xml的方式,变为了java类的形式

import com.alibaba.druid.pool.DruidDataSource;import org.apache.ibatis.session.SqlSessionFactory;import org.mybatis.spring.SqlSessionFactoryBean;import org.mybatis.spring.annotation.MapperScan;import org.springframework.boot.bind.RelaxedPropertyResolver;import org.springframework.context.ApplicationContextException;import org.springframework.context.EnvironmentAware;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import org.springframework.core.env.Environment;import org.springframework.jdbc.datasource.DataSourceTransactionManager;import org.springframework.transaction.PlatformTransactionManager;import org.springframework.transaction.annotation.EnableTransactionManagement;import org.springframework.util.StringUtils;import java.sql.SQLException;import java.util.Arrays;/** * DruidDataSourceConfig.java读取数据源的配置 * *  * Date : 17:07 2017/12/5 */@Configuration@EnableTransactionManagement@MapperScan(value = "dao层的位置")public class DruidDataSourceConfig implements EnvironmentAware {    private Environment environment;    private RelaxedPropertyResolver propertyResolver;    @Override    public void setEnvironment(Environment environment) {        this.environment = environment;        this.propertyResolver = new RelaxedPropertyResolver(environment, "spring.datasource.");    }    /**     * 注册dataSource     *     * @return     * @throws SQLException     */    @Bean    public DruidDataSource dataSource() throws SQLException {        if (StringUtils.isEmpty(propertyResolver.getProperty("url"))) {            System.out.println("Your database connection pool configuration is incorrect!"                    + " Please check your Spring profile, current profiles are:"                    + Arrays.toString(environment.getActiveProfiles()));            throw new ApplicationContextException(                    "Database connection pool is not configured correctly");        }        DruidDataSource druidDataSource = new DruidDataSource();        druidDataSource.setDriverClassName(propertyResolver.getProperty("driver-class-name"));        druidDataSource.setUrl(propertyResolver.getProperty("url"));        druidDataSource.setUsername(propertyResolver.getProperty("username"));        druidDataSource.setPassword(propertyResolver.getProperty("password"));        druidDataSource.setInitialSize(Integer.parseInt(propertyResolver.getProperty("initialSize")));        druidDataSource.setMinIdle(Integer.parseInt(propertyResolver.getProperty("minIdle")));        druidDataSource.setMaxActive(Integer.parseInt(propertyResolver.getProperty("maxActive")));        druidDataSource.setMaxWait(Integer.parseInt(propertyResolver.getProperty("maxWait")));        druidDataSource.setTimeBetweenEvictionRunsMillis(Long.parseLong(propertyResolver.getProperty("timeBetweenEvictionRunsMillis")));        druidDataSource.setMinEvictableIdleTimeMillis(Long.parseLong(propertyResolver.getProperty("minEvictableIdleTimeMillis")));        druidDataSource.setValidationQuery(propertyResolver.getProperty("validationQuery"));        druidDataSource.setTestWhileIdle(Boolean.parseBoolean(propertyResolver.getProperty("testWhileIdle")));        druidDataSource.setTestOnBorrow(Boolean.parseBoolean(propertyResolver.getProperty("testOnBorrow")));        druidDataSource.setTestOnReturn(Boolean.parseBoolean(propertyResolver.getProperty("testOnReturn")));        druidDataSource.setPoolPreparedStatements(Boolean.parseBoolean(propertyResolver.getProperty("poolPreparedStatements")));        druidDataSource.setMaxPoolPreparedStatementPerConnectionSize(Integer.parseInt(propertyResolver.getProperty("maxPoolPreparedStatementPerConnectionSize")));        return druidDataSource;    }    /**     * 拿到SqlSessionFactory     *     * @return     * @throws Exception     */    @Bean    public SqlSessionFactory sqlSessionFactory() throws Exception {        SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();        sqlSessionFactoryBean.setDataSource(dataSource());        return sqlSessionFactoryBean.getObject();    }    @Bean    public PlatformTransactionManager transactionManager() throws SQLException {        return new DataSourceTransactionManager(dataSource());    }}

配置到此结束在主程序中做测试

import com.yjp.springb.user.service.UserService;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.beans.factory.annotation.Qualifier;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.context.annotation.ComponentScan;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;@RestController@SpringBootApplication@ComponentScan(basePackages = {"XXX需要扫描的包"})public class LoginApplication {    @Autowired    @Qualifier("userService")    UserService userService;    public static void main(String[] args) {        SpringApplication.run(LoginApplication.class, args);    }    @RequestMapping("/login")    public String login() {    这里可以调用service中的方法         return "success";    }}

到此结束，有问题可以留言一起讨论

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