java连接不上sqlserver2008help-问答-阿里云开发者社区-阿里云

用java连接不上sqlserver2008,用客户端studio和.net程序都能连，郁闷~~~who can help me~~~
java 配置
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
        <property name="driverClassName"><value>com.microsoft.sqlserver.jdbc.SQLServerDriver</value></property>
        <property name="url"><value>jdbc:sqlserver://xxx.xxx.xxx.xx:3433; DatabaseName=xxxx</value></property>
        <property name="username"><value>xx</value></property>
        <property name="password"><value>xxxxxx</value></property>
        <property name="validationQuery"><value>select 1</value></property>
    </bean>
报错信息

12-01 14:38:17.602 WARN  [JDBCExceptionReporter.java:57] SQL Error: 0, SQLState:
08S01
12-01 14:38:17.602 ERROR [JDBCExceptionReporter.java:58] The connection to the h
ost RDS151012562, named instance MS3032 has failed. Error: java.net.UnknownHostE
xception: RDS151012562. Please verify the server and instance names, check that
no firewall is blocking UDP traffic to port 1434, and for SQL Server 2005 or lat
er, verify that the SQL Server Browser service is running on the host.
12-01 14:38:17.602 WARN  [SettingsFactory.java:107] Could not obtain connection
metadata
com.microsoft.sqlserver.jdbc.SQLServerException: The connection to the host RDS1
51012562, named instance MS3032 has failed. Error: java.net.UnknownHostException
: RDS151012562. Please verify the server and instance names, check that no firew
all is blocking UDP traffic to port 1434, and for SQL Server 2005 or later, veri
fy that the SQL Server Browser service is running on the host.
        at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(S
QLServerException.java:130)
        at com.microsoft.sqlserver.jdbc.SQLServerConnection.getInstancePort(SQLS
erverConnection.java:3090)