zoukankan      html  css  js  c++  java
  • 聊聊、Spring 数据源

    平时开发中我们每天都会跟数据库打交道,页面上显示的数字,图片,语音,等等都存在某个地方,而我们就是要从那个地方拿到我们想要的。现在存储数据的方式越来越多,多种多样,但用的最多的还是关系数据库。Spring 中有多种配置数据源方式,各有优缺点。

    (1)DBCP

    <dependency>
       <groupId>commons-dbcp</groupId>
       <artifactId>commons-dbcp</artifactId>
       <version>1.4</version>
    </dependency>
     <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
      <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
      <property name="url"
       value="jdbc:mysql://1.1.0.9:3306/dis?useSSL=false"></property>
      <property name="username" value="root"></property>
      <property name="password" value="123"></property>
      <property name="initialSize" value="5"></property>
      <property name="maxActive" value="10"></property>
    </bean>

    (2)DriverManagerDataSource 和 SingleConnectionDataSource

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>3.0.0.RELEASE</version>
    </dependency>
    <bean id="dataSource2"
            class="org.springframework.jdbc.datasource.DriverManagerDataSource">
            <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
            <property name="url" value="jdbc:mysql://1.1.0.9:3306/dis"></property>
            <property name="username" value="root"></property>
            <property name="password" value="123"></property>
    </bean>
    
    <bean id="dataSource3"
            class="org.springframework.jdbc.datasource.SingleConnectionDataSource">
            <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
            <property name="url" value="jdbc:mysql://1.1.0.9:3306/dis"></property>
            <property name="username" value="root"></property>
            <property name="password" value="123"></property>
    </bean>

    (3)C3P0

    <dependency>
        <groupId>c3p0</groupId>
        <artifactId>c3p0</artifactId>
        <version>0.9.1.2</version>
    </dependency>
        <bean id="dataSource5" class="com.mchange.v2.c3p0.ComboPooledDataSource">
            <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
            <property name="jdbcUrl"
                value="jdbc:mysql://1.1.0.9:3306/dis?useSSL=false"></property>
            <property name="user" value="root"></property>
            <property name="password" value="123"></property>
            <property name="minPoolSize" value="5" />
            <property name="maxPoolSize" value="20" />
            <property name="initialPoolSize" value="10" />
            <property name="maxIdleTime" value="60" />
            <property name="idleConnectionTestPeriod" value="60" />
            <property name="acquireIncrement" value="5" />
            <property name="acquireRetryAttempts" value="30" />
    </bean>

    (4)DRUID

    <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.0.19</version>
    </dependency>
        <bean id="dataSource1" class="com.alibaba.druid.pool.DruidDataSource">
            <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
            <property name="url"
                value="jdbc:mysql://1.1.0.9:3306/dis?useSSL=false"></property>
            <property name="username" value="root"></property>
            <property name="password" value="abcd123"></property>
            <property name="filters" value="stat" />
            <property name="maxActive" value="20" />
            <property name="initialSize" value="2" />
            <property name="maxWait" value="60000" />
            <property name="minIdle" value="10" />
            <property name="timeBetweenEvictionRunsMillis" value="60000" />
            <property name="minEvictableIdleTimeMillis" value="300000" />
            <property name="validationQuery" value="SELECT '1'" />
            <property name="testWhileIdle" value="true" />
            <property name="testOnBorrow" value="false" />
            <property name="testOnReturn" value="false" />
            <property name="maxOpenPreparedStatements" value="100" />
        </bean>
  • 相关阅读:
    无监督学习在反欺诈中的应用
    Java中Object对象方法
    ambari下httpfs安装
    深入理解spark-rdd详解
    Tensorflow实践Basic Classification
    深入理解spark-两种调度模式FIFO,FAIR模式
    深入理解spark-taskScheduler,schedulerBackend源码分析
    js模仿页面点击
    记一次请求走私学习
    十种常见的报错注入
  • 原文地址:https://www.cnblogs.com/xums/p/9403640.html
Copyright © 2011-2022 走看看