No suitable driver found for jdbc:sqlserver

zjearn

我要在BEX5 V3.7 中的BIZ层加入自己的JDBC 连接，运行时报错：
java.sql.SQLException: No suitable driver found for jdbc:sqlserver:10.77.96.175:1433;databaseName=HFCX5_DEV;

具体代码如下：
//-----------------------------------------------------
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.justep.system.data.Row;
import com.justep.system.data.Table;

import java.sql.Connection;
import java.sql.DriverManager;
public class SD002 {

public static void testJDBC(String paramJson){
     String sqlurl = "jdbc:sqlserver:10.77.96.175:1433;databaseName=HFCX5_DEV;";  
     String sqlUSR    = "HFCX5DEV";
     String sqlPSW    = "Hfcx50302(1)";
        try {
         System.out.println("before-Class.forName.");
         Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
         System.out.println("after-Class.forName");
      Connection dbconn = DriverManager
                .getConnection(
                  sqlurl,
                  sqlUSR, sqlPSW);
         System.out.println("after-Class.getConnection.");
      if (!dbconn.isClosed()) {
       System.out.println("not Closed.");
      };
        } catch (Exception e) {
            e.printStackTrace();
        }
}
}
//-----------------------------------------------------

BIZ的架建路径有加入sqljdbc42.jar，
此sqljdbc42.jar文件有复制到 ：BeX5_V3.7\apache-tomcat\lib
sqljdbc42.jar还有复制到：BeX5_V3.7\runtime\BusinessServer\WEB-INF\lib
运行BEX5, 调用 testJDBC 时报错：
=======================
before-Class.forName.
after-Class.forName
java.sql.SQLException: No suitable driver found for jdbc:sqlserver:10.77.96.175:1433;databaseName=HFCX5_DEV;
at java.sql.DriverManager.getConnection(DriverManager.java:689)
at java.sql.DriverManager.getConnection(DriverManager.java:247)
at SD002.testJDBC(SD002.java:453)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at com.justep.system.action.Engine.invokeActions(Native Method)
at com.justep.system.action.Engine.invokeActions(Unknown Source)
at com.justep.business.server.BusinessServer.doAction(Unknown Source)
at com.justep.business.server.BusinessServer.doExcute(Unknown Source)
at com.justep.business.server.BusinessServer.excute(Unknown Source)
at com.justep.business.server.BusinessServer.excute(Unknown Source)
at com.justep.business.server.BusinessServerServlet.execService(Unknown Source)
at com.justep.business.server.BusinessServerServlet.service(Unknown Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
at com.justep.x.bs.BusinessServerServlet.service(Unknown Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:745)
=======================
提示：我的JDBC 参数在BEX5以外的JAVA程序是正常的。‘
问：BEX5中为何不能加载JDBC驱动？如何建立自己的数据库连接。

jishuang

平台用的是net.sourceforge.jtds.jdbc.Driver

zjearn

因某功能需求，我需要用平台以外的数据库驱动，JDBC，怎么做？
用平台内的连接池我知道，你不要建议我用下面的方法，我帮你回答了：
conn  = com.justep.model.ModelUtils.getConnectionInTransaction("/demo/demo1/data");
...
我重点是问，外部的java包sqljdbc42.jar为什么在X5不能加载？

zjearn

答非所问，1楼的问题是：BEX5中为何不能加载JDBC驱动？如何建立自己的数据库连接。

jishuang

tomcat的lib下放自己的需要的数据库驱动了吗？
BIZ层的构建路径中导入自己的驱动jar了吗?