Spring JDBC中的SocketTimoutException

我对Spring JDBC非常陌生。我能够连接到使用手工代码我的本地MS SQL Server实例，但得到了使用Spring JDBC以下异常：Spring JDBC中的SocketTimoutException

Exception in thread "main" org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is com.microsoft.sqlserver.jdbc.SQLServerException: The connection to the host localhost, named instance \sqlexpress failed. Error: "java.net.SocketTimeoutException: Receive timed out". Verify the server and instance names and check that no firewall is blocking UDP traffic to port 1434. For SQL Server 2005 or later, verify that the SQL Server Browser Service is running on the host. 
    at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:80) 
    at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:390) 
    at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:470) 
    at org.springframework.jdbc.core.JdbcTemplate.queryForRowSet(JdbcTemplate.java:511) 
    at org.springdemo.demo1.CustomJDBCTemplate.getDBs(CustomJDBCTemplate.java:25) 
    at org.springdemo.demo1.MainApp.main(MainApp.java:15) 
Caused by: com.microsoft.sqlserver.jdbc.SQLServerException: The connection to the host localhost, named instance \sqlexpress failed. Error: "java.net.SocketTimeoutException: Receive timed out". Verify the server and instance names and check that no firewall is blocking UDP traffic to port 1434. For SQL Server 2005 or later, verify that the SQL Server Browser Service is running on the host.

SQL Browser服务已在运行。

以下是beans.xml中：

<?xml version="1.0" encoding="UTF-8"?> 
<beans xmlns="http://www.springframework.org/schema/beans" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd "> 

<bean id="dataSource1" 
    class="org.springframework.jdbc.datasource.DriverManagerDataSource"> 
    <property name="driverClassName" value="com.microsoft.sqlserver.jdbc.SQLServerDriver" /> 
    <property name="url" 
     value="jdbc:sqlserver://localhost\\SQLExpress;integratedSecurity=true;" /> 
</bean> 

<bean id="dataSource2" 
    class="org.apache.commons.dbcp2.BasicDataSource"> 
    <property name="driverClassName" value="net.sourceforge.jtds.jdbc.Driver" /> 
    <property name="url" 
     value="jdbc:sqlserver://localhost\\SQLExpress;integratedSecurity=true;" /> 
</bean> 

<bean id="customJDBCTemplate" class="org.springdemo.demo1.CustomJDBCTemplate"> 
    <property name="dataSources"> 
     <list> 
      <ref bean="dataSource1" /> 
     </list> 
    </property> 
</bean>

正如你所看到的，我都试过春天JDBC和公共DBCP，但都失败了。这里的主要代码：

package org.springdemo.demo1; 

import org.springframework.context.ApplicationContext; 
import org.springframework.context.support.ClassPathXmlApplicationContext; 
import org.springframework.jdbc.support.rowset.SqlRowSet; 

public class MainApp { 

public static void main(String[] args) { 
    ApplicationContext context = new ClassPathXmlApplicationContext(
      "beans.xml"); 
    CustomJDBCTemplate template = (CustomJDBCTemplate) context 
      .getBean("customJDBCTemplate"); 

    SqlRowSet srs = template.getDBs(); 
    while (srs.next()) { 
     System.out.println(srs.getString("name")); 
    } 
} 
}

这里的模板类：

package org.springdemo.demo1; 

import java.sql.SQLException; 
import java.util.ArrayList; 
import java.util.List; 

import javax.sql.DataSource; 

import org.springframework.jdbc.core.JdbcTemplate; 
import org.springframework.jdbc.support.rowset.SqlRowSet; 

public class CustomJDBCTemplate { 
    private List<DataSource> dataSources; 
    private List<JdbcTemplate> jdbcTemplateObjects = new ArrayList<JdbcTemplate>(); 

    public void setDataSources(List<DataSource> dataSources) { 
     this.dataSources = dataSources; 
     for(DataSource s : dataSources) 
      this.jdbcTemplateObjects.add(new JdbcTemplate(s)); 
    } 

    public SqlRowSet getDBs() 
    { 
     String query = "SELECT name FROM master.dbo.sysdatabases WHERE name NOT IN ('master', 'tempdb', 'model', 'msdb');"; 
     return jdbcTemplateObjects.get(0).queryForRowSet(query); 
    } 
}

编辑1： @Shailendra - 这里的手工工作代码：

package jdbcexample; 

import java.sql.Connection; 
import java.sql.DriverManager; 
import java.sql.ResultSet; 
import java.sql.SQLException; 
import java.sql.Statement; 

public class Class2 { 

    final static String DB_URL = "jdbc:sqlserver://localhost\\SQLExpress;integratedSecurity=true;"; 

    public static void main(String[] args) { 
     Connection conn = null; 
     Statement stmt = null; 
     try { 
      // STEP 2: Register JDBC driver 
      Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver"); 

      // STEP 3: Open a connection 
      System.out.println("Connecting to database..."); 
      conn = DriverManager.getConnection(DB_URL); 

      // STEP 4: Execute a query 
      System.out.println("Creating statement..."); 
      stmt = conn.createStatement(); 
      String sql_getDBList = "SELECT name FROM master.dbo.sysdatabases WHERE name NOT IN ('master', 'tempdb', 'model', 'msdb');"; 
      ResultSet rs = stmt.executeQuery(sql_getDBList); 

      // STEP 5: Extract data from result set 
      while (rs.next()) { 
       // Retrieve by column name 
       String dis = rs.getString("name"); 
       System.out.println(dis); 
      } 
      stmt.close(); 
      conn.close(); 
     } catch (SQLException se) { 
      // Handle errors for JDBC 
      se.printStackTrace(); 
     } catch (Exception e) { 
      // Handle errors for Class.forName 
      e.printStackTrace(); 
     } finally { 
      // finally block used to close resources 
      try { 
       if (stmt != null) 
        stmt.close(); 
      } catch (SQLException se2) { 
      }// nothing we can do 
      try { 
       if (conn != null) 
        conn.close(); 
      } catch (SQLException se) { 
       se.printStackTrace(); 
      }// end finally try 
     }// end try 
     System.out.println("Goodbye!"); 
    } 
}

来源

2016-05-23 ak92

请分享成功运行的“手册代码”。 – Shailendra

@Shailendra - 添加了上面的工作代码。 – ak92