196 lines
8.7 KiB
Java
196 lines
8.7 KiB
Java
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package config;
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import org.mybatis.spring.SqlSessionFactoryBean;
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import org.mybatis.spring.mapper.MapperScannerConfigurer;
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import org.springframework.beans.factory.config.BeanPostProcessor;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.ComponentScan;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.core.io.Resource;
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import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
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import org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor;
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import org.springframework.data.redis.connection.RedisConnectionFactory;
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import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
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import org.springframework.data.redis.core.RedisTemplate;
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import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
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import org.springframework.data.redis.serializer.StringRedisSerializer;
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import org.springframework.jdbc.datasource.DataSourceTransactionManager;
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import org.springframework.jdbc.datasource.DriverManagerDataSource;
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import org.springframework.transaction.annotation.EnableTransactionManagement;
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import org.springframework.web.context.WebApplicationContext;
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import redis.clients.jedis.JedisPoolConfig;
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import javax.sql.DataSource;
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import java.io.IOException;
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import java.util.Properties;
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/**
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* @author 志军
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* 用@Configuration注解该类，等价 与XML中配置beans；用@Bean标注方法等价于XML中配置bean.
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* 相当于applicationContext.xml文件
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*
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* 1.自动扫描web包 ,将带有注解的类 纳入spring容器管理
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* 2.引入jdbc配置文件
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* 3.dataSource 配置
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* 4.mybatis文件配置，扫描所有mapper文件
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* 5.spring与mybatis整合配置，扫描所有dao
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* 6.对dataSource 数据源进行事务管理
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* 7.配置使Spring采用CGLIB代理
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* 8.启用对事务注解的支持
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*/
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@Configuration
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@EnableTransactionManagement
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@ComponentScan
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public class ContextComponentLoader {
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/**
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* 配置数据源
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*/
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@Bean
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public DataSource dataSource() {
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//这边数据库的配置需要根据对应的地址进行修改
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DriverManagerDataSource driverManagerDataSource = new DriverManagerDataSource();
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driverManagerDataSource.setDriverClassName("oracle.jdbc.driver.OracleDriver");
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driverManagerDataSource.setUrl("jdbc:oracle:thin:@127.0.0.1:3306:ORCL");
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driverManagerDataSource.setUsername("admin");
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driverManagerDataSource.setPassword("admin");
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//可以配置数据池的其他东西
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return driverManagerDataSource;
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}
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@Bean
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public SqlSessionFactoryBean getSqlSessionFactoryBean(DataSource x) {
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SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
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//設置dataSource
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sqlSessionFactoryBean.setDataSource(x);
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Properties properties = new Properties();
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PathMatchingResourcePatternResolver pathMatchingResourcePatternResolver = new PathMatchingResourcePatternResolver();
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Resource[] resources = null;
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try {
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resources = pathMatchingResourcePatternResolver.getResources("dao/*.xml");
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} catch (IOException e) {
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e.printStackTrace();
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}
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sqlSessionFactoryBean.setMapperLocations(resources);
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sqlSessionFactoryBean.setConfigurationProperties(properties);
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//全局设置返回的结果map不把null的参数去掉。这个好像局部设置会比较好一点
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org.apache.ibatis.session.Configuration configuration = new org.apache.ibatis.session.Configuration();
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configuration.setCallSettersOnNulls(true);
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sqlSessionFactoryBean.setConfiguration(configuration);
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try {
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sqlSessionFactoryBean.afterPropertiesSet();
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} catch (Exception e) {
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e.printStackTrace();
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}
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return sqlSessionFactoryBean;
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}
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/**
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* 配置mapper的掃描類
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*/
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@Bean
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public MapperScannerConfigurer getMapperScannerConfigurer() {
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MapperScannerConfigurer mapperScannerConfigurer = new MapperScannerConfigurer();
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Properties pro = new Properties();
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/**這裡不是用Properties类来接收属性???*/
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// pro.setProperty("basePackage","com.springmvc.test.mapper");
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// pro.setProperty("sqlSessionFactoryBeanName","sqlSessionFactory");
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/**mapper和dao放在一个包下面*/
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/**setBasePackage的方法只能设置一个地址,
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* 扫描mapper时找不到对应的Resposity时会报错,
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* 但是扫描到Resposity没扫描到mapper不会报错*/
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mapperScannerConfigurer.setBasePackage("dao");
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// mapperScannerConfigurer.setBasePackage("com.springmvc.test.dao");
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// mapperScannerConfigurer.setSqlSessionFactory(sqlSessionFactory);
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mapperScannerConfigurer.setSqlSessionFactoryBeanName("getSqlSessionFactoryBean");
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try {
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return mapperScannerConfigurer;
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} catch (Exception ex) {
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System.out.println("发生错误");
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ex.printStackTrace();
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}
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return mapperScannerConfigurer;
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}
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/**
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* 配置mybatis的事务管理
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*/
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@Bean
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public DataSourceTransactionManager getDataSourceTransactionManager(DataSource dataSource) {
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DataSourceTransactionManager dataSourceTransactionManager = new DataSourceTransactionManager();
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dataSourceTransactionManager.setDataSource(dataSource);
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return dataSourceTransactionManager;
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}
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/**
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* PersistenceExceptionTranslationPostProcessor是一个
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bean 后置处理器（bean post-processor），它会在所有拥
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有@Repository注解的类上添加一个通知器（advisor），这样就会
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捕获任何平台相关的异常并以Spring非检查型数据访问异常的形式重
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新抛出。
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* */
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@Bean
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public BeanPostProcessor persistenceTranslation() {
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return new PersistenceExceptionTranslationPostProcessor();
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}
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/**
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* 配置redis 的数据源、数据连接池、事务
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*/
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@Bean(name = "jedisPoolConfig")
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public JedisPoolConfig createJedisPoolConfig() {
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JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
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// #最大空闲数，数据库连接的最大空闲时间。超过空闲时间，数据库连接将被标记为不可用，然后被释放。设为0表示无限制。
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jedisPoolConfig.setMaxIdle(300);
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// #连接池的最大数据库连接数。设为0表示无限制
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jedisPoolConfig.setMaxTotal(600);
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// #最大建立连接等待时间。如果超过此时间将接到异常。设为-1表示无限制。
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jedisPoolConfig.setMaxWaitMillis(5000);
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// #在borrow一个jedis实例时，是否提前进行alidate操作；如果为true，则得到的jedis实例均是可用的；
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jedisPoolConfig.setTestOnBorrow(true);
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return jedisPoolConfig;
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}
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@Bean(name = "jedisConnectionFactory")
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public JedisConnectionFactory createJedisConnectionFactory(WebApplicationContext context) {
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JedisConnectionFactory jedisConnectionFactory = new JedisConnectionFactory();
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jedisConnectionFactory.setHostName("127.0.0.1");
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jedisConnectionFactory.setPort(6379);
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//redis好像是只有一个用户，默认是没有密码的，在控制台设置密码好像是暂时的，第二次重启的时候这个密码就会失效
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//如果redis没有密码，就不要给这个参数进行设值操作，不然会报错，而且redis桌面应用中的密码和链接redis客户端的密码好像也会冲突
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jedisConnectionFactory.setPassword("123456");
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//连接池配置
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jedisConnectionFactory.setPoolConfig((JedisPoolConfig) context.getBean("jedisPoolConfig"));
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return jedisConnectionFactory;
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}
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/**
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* redis操作模版,使用该对象可以操作redis
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*/
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@Bean(name = "redisTemplate")
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public RedisTemplate createRedisTemplate(WebApplicationContext context) {
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RedisTemplate redisTemplate = new RedisTemplate();
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redisTemplate.setConnectionFactory((RedisConnectionFactory) context.getBean("jedisConnectionFactory"));
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// 如果不配置Serializer，那么存储的时候缺省使用String，如果用User类型存储，那么会提示错误User can't cast to String！！
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redisTemplate.setKeySerializer(new StringRedisSerializer());
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redisTemplate.setValueSerializer(new GenericJackson2JsonRedisSerializer());
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redisTemplate.setHashKeySerializer(new StringRedisSerializer());
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redisTemplate.setHashValueSerializer(new GenericJackson2JsonRedisSerializer());
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//开启事务
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redisTemplate.setEnableTransactionSupport(true);
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return redisTemplate;
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}
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}
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