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简介 spring-boot 是由Pivotal团队提供的全新框架，其设计目的是用来简化新Spring 应用的初始搭建以及开发过程。该框架使用了特定的方式来进行配置，从而使开发人员不再需要定义样板化的配置。通过这种方式，Boot致力于在蓬勃发展的快速应用开发领域（rapid application development）成为领导者。 文件结构 file:///C:\Users\PC\AppData\Local\Temp\ksohtml\wpsFAC6.tmp.png https://github.com/bigbeef/cppba-spring-boot 1.maven的pom.xml配置 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" <modelVersion>4.0.0</modelVersion> <groupId>com.cppbba</groupId> <artifactId>cppba-spring-boot</artifactId> <packaging>war</packaging> <version>1.0.0</version> <name>cppba-spring-boot Maven Webapp</name> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.3.6.RELEASE</version> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <jdk.version>1.7</jdk.version> <spring.version>4.3.0.RELEASE</spring.version> <hibernate.version>4.3.11.Final</hibernate.version> </properties> <dependencies> <!--spring--> <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> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-jdbc</artifactId> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-orm</artifactId> </dependency> <!--mysql--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency> <!-- hibernate--> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-entitymanager</artifactId> <version>${hibernate.version}</version> </dependency> <!--druid--> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.0.20</version> </dependency> </dependencies> <build> <finalName>cppba-spring-boot</finalName> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project> 2.创建Application.java package com.cppba; import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.core.env.Environment; import java.net.UnknownHostException; // same as @Configuration @EnableAutoConfiguration @ComponentScan@SpringBootApplicationpublic class Application { public static void main(String[] args) throws UnknownHostException { SpringApplication app = new SpringApplication(Application.class); Environment environment = app.run(args).getEnvironment(); } } 3.创建DatabaseConfiguration.java package com.cppba.config; import com.alibaba.druid.pool.DruidDataSource;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.orm.hibernate4.HibernateTransactionManager;import org.springframework.orm.hibernate4.LocalSessionFactoryBean;import org.springframework.transaction.annotation.EnableTransactionManagement;import org.springframework.util.StringUtils; import javax.sql.DataSource;import java.sql.SQLException;import java.util.Arrays;import java.util.Properties; @Configuration@EnableTransactionManagementpublic class DatabaseConfiguration implements EnvironmentAware { private Environment environment; private RelaxedPropertyResolver datasourcePropertyResolver; //从application.yml中读取资源 @Override public void setEnvironment(Environment environment) { this.environment = environment; this.datasourcePropertyResolver = new RelaxedPropertyResolver(environment, "spring.datasource."); } //datasource @Bean(initMethod = "init", destroyMethod = "close") public DataSource dataSource() throws SQLException { if (StringUtils.isEmpty(datasourcePropertyResolver.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.setUrl(datasourcePropertyResolver.getProperty("url")); druidDataSource.setUsername(datasourcePropertyResolver .getProperty("username")); druidDataSource.setPassword(datasourcePropertyResolver .getProperty("password")); druidDataSource.setInitialSize(1); druidDataSource.setMinIdle(1); druidDataSource.setMaxActive(20); druidDataSource.setMaxWait(60000); druidDataSource.setTimeBetweenEvictionRunsMillis(60000); druidDataSource.setMinEvictableIdleTimeMillis(300000); druidDataSource.setValidationQuery("SELECT 'x'"); druidDataSource.setTestWhileIdle(true); druidDataSource.setTestOnBorrow(false); druidDataSource.setTestOnReturn(false); return druidDataSource; } //sessionFactory @Bean public LocalSessionFactoryBean sessionFactory() throws SQLException{ LocalSessionFactoryBean localSessionFactoryBean = new LocalSessionFactoryBean(); localSessionFactoryBean.setDataSource(this.dataSource()); Properties properties1 = new Properties(); properties1.setProperty("hibernate.dialect","org.hibernate.dialect.MySQL5Dialect"); properties1.setProperty("hibernate.show_sql","false"); localSessionFactoryBean.setHibernateProperties(properties1); localSessionFactoryBean.setPackagesToScan("*"); return localSessionFactoryBean; } //txManager事务开启 @Bean public HibernateTransactionManager txManager() throws SQLException { HibernateTransactionManager hibernateTransactionManager = new HibernateTransactionManager(); hibernateTransactionManager.setSessionFactory(sessionFactory().getObject()); return hibernateTransactionManager; } } 4.创建CommonAction.java(这是一个测试类) package com.cppba.web; import org.hibernate.SQLQuery;import org.hibernate.Session;import org.hibernate.SessionFactory;import org.springframework.transaction.annotation.Transactional;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController; import javax.annotation.Resource;import javax.servlet.http.HttpServletResponse;import java.io.IOException;import java.util.List; @RestController@Transactionalpublic class CommonAction { @Resource private SessionFactory sessionFactory; @RequestMapping("test") public void test(HttpServletResponse response){ Session session = sessionFactory.getCurrentSession(); SQLQuery sqlQuery = session.createSQLQuery("select * from user"); List list = sqlQuery.list(); System.out.printf(list.size()+""); try { response.setContentType("application/json"); response.setHeader("Cache-Control", "no-cache"); response.setCharacterEncoding("UTF-8"); response.getWriter().write("{\"msg\":\"调用成功\"}"); } catch (IOException e) { e.printStackTrace(); } } } 5.创建application.yml server: port: 8080 address: localhost spring: datasource: url: jdbc:mysql://localhost:3306/cppba username: root password: root 6.启动项目 我们点击启动按钮 file:///C:\Users\PC\AppData\Local\Temp\ksohtml\wpsFAD6.tmp.png https://github.com/bigbeef/cppba-spring-boot 控制台会打印如下内容： file:///C:\Users\PC\AppData\Local\Temp\ksohtml\wpsFAD7.tmp.png https://github.com/bigbeef/cppba-spring-boot file:///C:\Users\PC\AppData\Local\Temp\ksohtml\wpsFAD8.tmp.png https://github.com/bigbeef/cppba-spring-boot 启动成功
(我的CommonAction中RequestMapping("test"),所以访问路径是test) file:///C:\Users\PC\AppData\Local\Temp\ksohtml\wpsFAD9.tmp.png https://github.com/bigbeef/cppba-spring-boot 到此spring-boot配置成功！
作者：大黄蜂coder
链接：http://www.jianshu.com/p/887c22723e43
來源：简书
著作权归作者所有。商业转载请联系作者获得授权，非商业转载请注明出处。
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