Spring Servicemix中的Sql連接

Question

Spring Servicemix中的Sql連接

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
    <property name="driverClassName" value="com.microsoft.sqlserver.jdbc.SQLServerDriver"/>
    <property name="url" value="jdbc:sqlserver://localhost:1433/orderdb"/>
    <property name="username" value="abc"/>
    <property name="password" value="pqr"/>
</bean>

---

當我嘗試使用dataSource.getConnection（）建立連接時

不允許請幫忙

*****連接代碼**********

public class DatabaseBeanH2 {

    private DataSource dataSource;
    private static final Logger LOGGER = LoggerFactory.getLogger(DatabaseBeanH2.class);

    public DatabaseBeanH2(){}

    public void setDataSource(DataSource dataSource) {
        this.dataSource = dataSource;
    }

    public void create() throws SQLException{
        Statement sta = dataSource.getConnection().createStatement();
        try {
            sta.executeUpdate("CREATE TABLE orders ( id INT NOT NULL PRIMARY KEY AUTO_INCREMENT, item VARCHAR(50), amount INT, description VARCHAR(300), processed BOOLEAN, consumed BOOLEAN);");
        } catch (SQLException e) {
            LOGGER.info("Table orders already exists");
        }
    }

    public void destroy() throws SQLException {
        dataSource.getConnection().close();
    }
}

Answer 1

您必須使用以下代碼設置數據庫

<!-- this is the JDBC data source which uses an in-memory only Apache Derby database -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="org.apache.derby.jdbc.EmbeddedDriver"/>
<property name="url" value="jdbc:derby:memory:orders;create=true"/>
<property name="username" value=""/>
<property name="password" value=""/>
</bean>

<!-- bean which creates/destroys the database table for this example -->
<bean id="initDatabase" class="org.apache.camel.example.sql.DatabaseBean"
  init-method="create" destroy-method="destroy">
<property name="dataSource" ref="dataSource"/>
</bean>

<!-- configure the Camel SQL component to use the JDBC data source -->
<bean id="sql" class="org.apache.camel.component.sql.SqlComponent">
<property name="dataSource" ref="dataSource"/>
</bean>

請查看此鏈接http://camel.apache.org/sql-example.html

Answer 2

你必須在camel / spring上下文中的DatabaseBeanH2中注入dataSource bean，如下所示：

<bean id="databaseBean" class="my.package.DatabaseBeanH2">
    <property name="dataSource" ref="dataSource" />
</bean>