在客户端或者JDBC连接时定制支持中文的编码格式(通常使用UTF-8),这样插入数据的时候,让mysql为自动为我们转码,可行的办法有两种:
1、如果是通过DriverManager.getConnection(url)编码方式操作JDBC,可以在JDBC的url中追加useUnicode=true&characterEncoding=UTF-8解决乱码问题
jdbc.url=jdbc:mysql://127.0.0.1:3306/mydb?useUnicode=true&characterEncoding=UTF-8
2、如果是通过其它数据源,比如DBCP、tomcat-jdbc、c3p0、spring-jdbc、hibernate读取配置文件,在url中追加useUnicode=true&characterEncoding=UTF-8是不起作用的,而是通过数据源自身的配置生效,比如下列配置:
<!-- Tomcat data source -->
<bean id="dataSource" class="org.apache.tomcat.jdbc.pool.DataSource">
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
<property name="dbProperties">
<props>
<prop key="useUnicode">yes</prop>
<prop key="characterEncoding">utf8</prop>
</props>
</property>
<!-- Configuration refer to optimizing connection performance -->
<property name="initialSize" value="10" />
<property name="maxActive" value="100" />
<property name="maxIdle" value="50" />
<property name="minIdle" value="10" />
<property name="suspectTimeout" value="60" />
<property name="timeBetweenEvictionRunsMillis" value="30000" />
<property name="minEvictableIdleTimeMillis" value="60000" />
<property name="testOnBorrow" value="true" />
<property name="validationQuery" value="SELECT 1" />
<property name="validationInterval" value="30000" />
<!-- End Configuration refer to optimizing connection performance -->
</bean>
其中:
<props>
<prop key="useUnicode">yes</prop>
<prop key="characterEncoding">utf8</prop>
</props>