引入连接池

pom.xml

@@ -27,6 +27,11 @@
             <artifactId>mybatis-spring-boot-starter</artifactId>
             <version>2.2.2</version>
         </dependency>
+        <dependency>
+            <groupId>com.alibaba</groupId>
+            <artifactId>druid</artifactId>
+            <version>1.2.16</version>
+        </dependency>
 
         <dependency>
             <groupId>com.mysql</groupId>

src/main/java/app/bcms/jchat/config/DruidConfig.java

@@ -0,0 +1,115 @@
+package app.bcms.jchat.config;
+
+
+import app.bcms.jchat.constant.ChConstant;
+import com.alibaba.druid.pool.DruidDataSource;
+import com.alibaba.druid.support.http.StatViewServlet;
+import com.alibaba.druid.support.http.WebStatFilter;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.ibatis.session.SqlSessionFactory;
+import org.mybatis.spring.SqlSessionFactoryBean;
+import org.mybatis.spring.SqlSessionTemplate;
+import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.boot.web.servlet.FilterRegistrationBean;
+import org.springframework.boot.web.servlet.ServletRegistrationBean;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
+import org.springframework.jdbc.datasource.DataSourceTransactionManager;
+
+import javax.servlet.Filter;
+import javax.servlet.Servlet;
+import javax.sql.DataSource;
+import java.io.FileReader;
+import java.util.Properties;
+
+
+/**
+ * druid 数据库链接配置
+ * 涉及多数据源，此处需要明确指定扫描包的位置
+ */
+@Configuration
+@MapperScan(basePackages = {"app.bcms.*.mapper"},sqlSessionFactoryRef = "sqlSessionFactory")
+public class DruidConfig {
+    private Log log = LogFactory.getLog(DruidConfig.class); //初始化日志
+    static final String CHMAPPER_LOCATION = "classpath:mappers/*xml";
+
+    /**
+     * 配置为主要数据源
+     * @return
+     * @throws Exception
+     */
+
+    @Bean(name = "dataSource")
+    @Qualifier("dataSource")
+    public DataSource druidDataSource() throws Exception{
+        //配置文件的真实路径
+        String dbconf = ChConstant.WORK_DIR + ChConstant.DB_CONF;
+        Properties prop = new Properties();
+        prop.load(new FileReader(dbconf));
+        log.info("master druid:"+dbconf);
+        //使用datasource方式
+        DruidDataSource dataSource = new DruidDataSource();
+        String dburl = prop.getProperty("druid.url");
+        dataSource.setUrl(dburl);
+        dataSource.setDriverClassName(prop.getProperty("druid.driver-class"));
+        dataSource.setUsername(prop.getProperty("druid.username"));
+        dataSource.setPassword(prop.getProperty("druid.password"));
+
+        return dataSource;
+    }
+
+
+    @Bean
+    public ServletRegistrationBean<Servlet> druidServlet() {
+        // 进行 druid 监控的配置处理
+        ServletRegistrationBean<Servlet> srb = new ServletRegistrationBean<>(new StatViewServlet(), "/druid/*");
+        // 白名单
+        srb.addInitParameter("allow", "127.0.0.1");
+        // 黑名单
+        //srb.addInitParameter("deny", "192.168.31.253");
+        // 用户名
+        srb.addInitParameter("loginUsername", "root");
+        // 密码
+        srb.addInitParameter("loginPassword", "xc1123");
+        // 是否可以重置数据源
+        srb.addInitParameter("resetEnable", "false");
+        log.info("druid监控配置：" + srb);
+        return srb;
+    }
+
+    @Bean
+    public FilterRegistrationBean<Filter> filterRegistrationBean() {
+        FilterRegistrationBean<Filter> frb = new FilterRegistrationBean<>();
+        frb.setFilter(new WebStatFilter());
+        // 所有请求进行监控处理
+        frb.addUrlPatterns("/*");
+        // 排除名单
+        frb.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.css,/druid/*");
+        return frb;
+    }
+
+
+    @Bean(name="sqlSessionFactory")
+    public SqlSessionFactory chSqlSessionFactory(@Qualifier("dataSource") DataSource dataSource) throws Exception {
+        SqlSessionFactoryBean bean=new SqlSessionFactoryBean();
+        bean.setDataSource(dataSource);
+        bean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources(DruidConfig.CHMAPPER_LOCATION));
+        log.info("chSqlSessionFactory"+bean.toString());
+        return bean.getObject();
+    }
+
+    //配置事务
+    @Bean(name="transactionManager")
+    public DataSourceTransactionManager testTransactionManager(@Qualifier("dataSource") DataSource dataSource) {
+        return new DataSourceTransactionManager(dataSource);
+    }
+
+//
+    @Bean(name="sqlSessionTemplate")
+    public SqlSessionTemplate testSqlSessionTemplate(@Qualifier("sqlSessionFactory") SqlSessionFactory sqlSessionFactory) {
+        return new SqlSessionTemplate(sqlSessionFactory);
+    }
+}

src/main/java/app/bcms/jchat/config/EnvConfig.java

@@ -0,0 +1,28 @@
+package app.bcms.jchat.config;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.core.env.Environment;
+
+@Configuration
+public class EnvConfig {
+    private Log log = LogFactory.getLog(EnvConfig.class);
+
+    @Autowired
+    private Environment env;
+
+    /**
+     * 获取大数据链接信息
+     * 项目初始化的时候完成操作
+     * @return
+     */
+    @Bean
+    public static String yxDbConf(){
+        //读取当前运行位置
+        String curPath=System.getProperty("user.dir");
+        return curPath;
+    }
+}

src/main/java/app/bcms/jchat/config/WebMvcConfig.java

@@ -0,0 +1,21 @@
+package app.bcms.jchat.config;
+
+import com.xtmis.suu.constant.ChConstant;
+import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;
+
+/**
+ * web mvc 的控制类
+ */
+
+public class WebMvcConfig extends WebMvcConfigurationSupport {
+    /**
+     * 使用该类会使 application中的配置失效
+     * 静态资源映射
+     * @param registry
+     */
+    protected void addResourceHandlers(ResourceHandlerRegistry registry) {
+        String resDir = ChConstant.WORK_DIR+ChConstant.UPLOAD_PATH;
+        registry.addResourceHandler("/uploads/**").addResourceLocations("file:"+resDir);
+    }
+}

src/main/java/app/bcms/jchat/constant/ChConstant.java

@@ -0,0 +1,21 @@
+package app.bcms.jchat.constant;
+
+
+import com.xtmis.suu.config.EnvConfig;
+
+/**
+ * 系统常量
+ */
+public class ChConstant {
+    //项目运行目录
+    public static final String WORK_DIR = EnvConfig.yxDbConf();
+
+    //数据库链接文件路径
+    public static final String DB_CONF = "/conf/db.properties";
+    // 文件上传目录
+    public static final String UPLOAD_PATH="/uploads";
+
+    //分页大小
+    public static final int PAGESIZE = 12;
+}
+