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          eclipse中應用Hibernate常見錯誤匯總(更新中)

          Posted on 2006-12-13 11:01 sxt 閱讀(1192) 評論(0)  編輯  收藏 所屬分類: eclipse
          錯誤1、出現對象名 '×××(表名)' 無效錯誤
          原因:可能是由于你在配置文件中寫數據庫連接url時沒有寫明所要連接的數據庫。
          現在將各種驅動連接總結如下:

          1. MySQL(http://www.mysql.com)mm.mysql-2.0.2-bin.jar
          Class.forName( "org.gjt.mm.mysql.Driver" );
          cn = DriverManager.getConnection( "jdbc:mysql://MyDbComputerNameOrIP:3306/myDatabaseName", sUsr, sPwd );

          2. PostgreSQL(http://www.de.postgresql.org)pgjdbc2.jar
          Class.forName( "org.postgresql.Driver" );
          cn = DriverManager.getConnection( "jdbc:postgresql://MyDbComputerNameOrIP/myDatabaseName", sUsr, sPwd );

          3. Oracle(http://www.oracle.com/ip/deploy/database/oracle9i/)classes12.zip
          Class.forName( "oracle.jdbc.driver.OracleDriver" );
          cn = DriverManager.getConnection( "jdbc:oracle:thin:@MyDbComputerNameOrIP:1521:ORCL", sUsr, sPwd );

          4. Sybase(http://jtds.sourceforge.net)jconn2.jar
          Class.forName( "com.sybase.jdbc2.jdbc.SybDriver" );
          cn = DriverManager.getConnection( "jdbc:sybase:Tds:MyDbComputerNameOrIP:2638", sUsr, sPwd );
          //(Default-Username/Password: "dba"/"sql")

          5. Microsoft SQLServer(http://jtds.sourceforge.net)
          Class.forName( "net.sourceforge.jtds.jdbc.Driver" );
          cn = DriverManager.getConnection( "jdbc:jtds:sqlserver://MyDbComputerNameOrIP:1433/master", sUsr, sPwd );

          6. Microsoft SQLServer(http://www.microsoft.com)
          Class.forName( "com.microsoft.jdbc.sqlserver.SQLServerDriver" );
          cn = DriverManager.getConnection( "jdbc:microsoft:sqlserver://MyDbComputerNameOrIP:1433;databaseName=master", sUsr, sPwd );

          7. ODBC
          Class.forName( "sun.jdbc.odbc.JdbcOdbcDriver" );
          Connection cn = DriverManager.getConnection( "jdbc:odbc:" + sDsn, sUsr, sPwd );

          8.DB2(
          新添加)
          Class.forName("com.ibm.db2.jdbc.net.DB2Driver");
          String url="jdbc:db2://192.9.200.108:6789/SAMPLE"
          cn = DriverManager.getConnection( url, sUsr, sPwd );

          補充
          Microsoft SQL Server series (6.5, 7.x and 2000) and Sybase 10

          JDBC Name: jTDS
          URL: http://jtds.sourceforge.net/
          Version: 0.5.1
          Download URL: http://sourceforge.net/project/showfiles.php?group_id=33291

          語法:

          Class.forName("net.sourceforge.jtds.jdbc.Driver ");
          Connection con = DriverManager.getConnection("jdbc:jtds:sqlserver://host:port/database","user","password");
          or
          Connection con = DriverManager.getConnection("jdbc:jtds:sybase://host:port/database","user","password");
          Postgresql

          JDBC Name: PostgreSQL JDBC
          URL: http://jdbc.postgresql.org/
          Version: 7.3.3 build 110
          Download URL: http://jdbc.postgresql.org/download.html

          語法:

          Class.forName("org.postgresql.Driver");
          Connection con=DriverManager.getConnection("jdbc:postgresql://host:port/database","user","password");


          IBM AS400
          主機在用的JDBC語法

          有裝V4R4以上版本的Client Access Express
          可以在C:\Program Files\IBM\Client Access\jt400\lib
          找到 driver 檔案 jt400.zip,并更改擴展名成為 jt400.jar

          語法

          java.sql.DriverManager.registerDriver (new com.ibm.as400.access.AS400JDBCDriver ());
          Class.forName("com.ibm.as400.access.AS400JDBCConnection");
          con = DriverManager.getConnection("jdbc:as400://IP","user","password");

          informix

          Class.forName("com.informix.jdbc.IfxDriver").newInstance();

          String url =

          "jdbc:informix-sqli://123.45.67.89:1533/testDB:INFORMIXSERVER=myserver;

          user=testuser;password=testpassword";


          Lib
          jdbcdrv.zip<br><br>Class.forName( "com.sybase.jdbc.SybDriver" )<br>url="jdbc:sybase:Tds:127.0.0.1:2638/asademo";<br>SybConnection connection= (SybConnection)DriverManager.getConnection(url,"dba","sql");<br>


          補充兩個
          SAP DB
          Class.forName ("com.sap.dbtech.jdbc.DriverSapDB");
          java.sql.Connection connection = java.sql.DriverManager.getConnection ( "jdbc:sapdb://" + host + "/" + database_name,user_name, password)

          InterBase
          String url = "jdbc:interbase://localhost/e:/testbed/database/employee.gdb";
          Class.forName("interbase.interclient.Driver");
          //Driver d = new interbase.interclient.Driver (); /* this will also work if you do not want the line above */
          Connection conn = DriverManager.getConnection( url, "sysdba", "masterkey" );



          我也來補一個吧:HSqlDB

          url:     http://hsqldb.sourceforge.net/
          driver:  org.hsqldb.jdbcDriver

          連接方式有4種,分別為:
          con-str
          (內存): jdbc:hsqldb.
          con-str
          (本地): jdbc:hsqldb:/path/to/the/db/dir
          con-str
          http: jdbc:hsqldb:http://dbsrv
          con-str
          hsql: jdbc:hsqldb:hsql://dbsrv


          錯誤2、Caused by: java.sql.SQLException: [Microsoft][SQLServer 2000 Driver for JDBC]Can't start a cloned connection while in manual transaction mode.  
          原因:
          你在嘗試打開一個克隆連接,
          有兩種解決辦法: 每個數據庫的連接在執行完畢后,關閉,
          第二,在連接時,判斷是否已經有連接存在,有則使用現成的連接。

          也可以在連接字符串中加入SelectMethod=cursor,即寫成這樣:“jdbc:microsoft:sqlserver://localhost:1433;SelectMethod=cursor;DatabaseName=bugzero_db”

          或者改用

          Microsoft SQLServer(http://jtds.sourceforge.net)
          Class.forName( "net.sourceforge.jtds.jdbc.Driver" );
          cn = DriverManager.getConnection( "jdbc:jtds:sqlserver://MyDbComputerNameOrIP:1433/master", sUsr, sPwd );

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