Spring--JdbcTemplate

dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>4.3.12.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>4.3.12.RELEASE</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.38</version> </dependency> <dependency> <groupId>com.mchange</groupId> <artifactId>c3p0</artifactId> <version>0.9.5.2</version> </dependency>

编写目标类：

<span style="color: #0000ff;">import</span><span style="color: #000000;"> org.springframework.jdbc.core.JdbcTemplate;
</span><span style="color: #0000ff;">public</span> <span style="color: #0000ff;">class</span><span style="color: #000000;"> UserDao {
    </span><span style="color: #0000ff;">private</span><span style="color: #000000;"> JdbcTemplate jdbcTemplate;
    </span><span style="color: #0000ff;">public</span> <span style="color: #0000ff;">void</span><span style="color: #000000;"> setJdbcTemplate(JdbcTemplate jdbcTemplate) {
        </span><span style="color: #0000ff;">this</span>.jdbcTemplate =<span style="color: #000000;"> jdbcTemplate;
    }
    </span><span style="color: #0000ff;">public</span> <span style="color: #0000ff;">void</span><span style="color: #000000;"> insert(){
        String sql</span>="insert into user (name,deptid) values (?,?)"<span style="color: #000000;">;
        jdbcTemplate.update(sql, </span><span style="color: #0000ff;">new</span> Object[]{"caoyc",3<span style="color: #000000;">});
    }
}</span>

配置xml配置文件：

<span style="color: #0000ff;"><?</span><span style="color: #ff00ff;">xml version="1.0" encoding="UTF-8"</span><span style="color: #0000ff;">?></span>
<span style="color: #0000ff;"><</span><span style="color: #800000;">beans </span><span style="color: #ff0000;">xmlns</span><span style="color: #0000ff;">="http://www.springframework.org/schema/beans"</span><span style="color: #ff0000;">
       xmlns:xsi</span><span style="color: #0000ff;">="http://www.w3.org/2001/XMLSchema-instance"</span><span style="color: #ff0000;">
       xsi:schemaLocation</span><span style="color: #0000ff;">="
        http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd"</span><span style="color: #0000ff;">></span>
    <span style="color: #0000ff;"><</span><span style="color: #800000;">bean </span><span style="color: #ff0000;">id</span><span style="color: #0000ff;">="dataSource"</span><span style="color: #ff0000;"> class</span><span style="color: #0000ff;">="com.mchange.v2.c3p0.ComboPooledDataSource"</span><span style="color: #0000ff;">></span>
         <span style="color: #0000ff;"><</span><span style="color: #800000;">property </span><span style="color: #ff0000;">name</span><span style="color: #0000ff;">="user"</span><span style="color: #ff0000;"> value</span><span style="color: #0000ff;">="root"</span><span style="color: #0000ff;">></</span><span style="color: #800000;">property</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"><</span><span style="color: #800000;">property </span><span style="color: #ff0000;">name</span><span style="color: #0000ff;">="password"</span><span style="color: #ff0000;"> value</span><span style="color: #0000ff;">="123456"</span><span style="color: #0000ff;">></</span><span style="color: #800000;">property</span><span style="color: #0000ff;">></span>
         <span style="color: #0000ff;"><</span><span style="color: #800000;">property </span><span style="color: #ff0000;">name</span><span style="color: #0000ff;">="driverClass"</span><span style="color: #ff0000;"> value</span><span style="color: #0000ff;">="com.mysql.jdbc.Driver"</span><span style="color: #0000ff;">></</span><span style="color: #800000;">property</span><span style="color: #0000ff;">></span>
         <span style="color: #0000ff;"><</span><span style="color: #800000;">property </span><span style="color: #ff0000;">name</span><span style="color: #0000ff;">="jdbcUrl"</span><span style="color: #ff0000;"> value</span><span style="color: #0000ff;">="jdbc:mysql://localhost:3306/test"</span><span style="color: #0000ff;">></</span><span style="color: #800000;">property</span><span style="color: #0000ff;">></span>
     <span style="color: #0000ff;"></</span><span style="color: #800000;">bean</span><span style="color: #0000ff;">></span>
     <span style="color: #008000;"><!--</span><span style="color: #008000;">配置jdbcTemplate对象，并为类中的dataSource属性注入值 </span><span style="color: #008000;">--></span>
     <span style="color: #0000ff;"><</span><span style="color: #800000;">bean </span><span style="color: #ff0000;">id</span><span style="color: #0000ff;">="jdbcTemplate"</span><span style="color: #ff0000;"> class</span><span style="color: #0000ff;">="org.springframework.jdbc.core.JdbcTemplate"</span><span style="color: #0000ff;">></span>
         <span style="color: #0000ff;"><</span><span style="color: #800000;">property </span><span style="color: #ff0000;">name</span><span style="color: #0000ff;">="dataSource"</span><span style="color: #ff0000;"> ref</span><span style="color: #0000ff;">="dataSource"</span><span style="color: #0000ff;">></</span><span style="color: #800000;">property</span><span style="color: #0000ff;">></span>
     <span style="color: #0000ff;"></</span><span style="color: #800000;">bean</span><span style="color: #0000ff;">></span>
     <span style="color: #008000;"><!--</span><span style="color: #008000;">配置userDao对象，并为类中的属性注入值 </span><span style="color: #008000;">--></span>
     <span style="color: #0000ff;"><</span><span style="color: #800000;">bean </span><span style="color: #ff0000;">id</span><span style="color: #0000ff;">="userDao"</span><span style="color: #ff0000;"> class</span><span style="color: #0000ff;">="com.jdbcTemplate.UserDao"</span><span style="color: #0000ff;">></span>
         <span style="color: #0000ff;"><</span><span style="color: #800000;">property </span><span style="color: #ff0000;">name</span><span style="color: #0000ff;">="jdbcTemplate"</span><span style="color: #ff0000;"> ref</span><span style="color: #0000ff;">="jdbcTemplate"</span><span style="color: #0000ff;">/></span>
     <span style="color: #0000ff;"></</span><span style="color: #800000;">bean</span><span style="color: #0000ff;">></span>
<span style="color: #0000ff;"></</span><span style="color: #800000;">beans</span><span style="color: #0000ff;">></span>

编写测试代码：

<span style="color: #0000ff;">import</span><span style="color: #000000;"> org.springframework.context.ApplicationContext;
</span><span style="color: #0000ff;">import</span><span style="color: #000000;"> org.springframework.context.support.ClassPathXmlApplicationContext;
</span><span style="color: #0000ff;">public</span> <span style="color: #0000ff;">class</span><span style="color: #000000;"> Test {
    </span><span style="color: #0000ff;">public</span> <span style="color: #0000ff;">static</span> <span style="color: #0000ff;">void</span><span style="color: #000000;"> main(String[] args) {
        ApplicationContext context</span>=<span style="color: #0000ff;">new</span> ClassPathXmlApplicationContext("bean5.xml"<span style="color: #000000;">);
        UserDao userDao</span>= (UserDao) context.getBean("userDao"<span style="color: #000000;">);
        userDao.insert();
    }
}</span>

运行结果：数据正常入库。

 

Spring--JdbcTemplate

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