java 實現往oracle存儲過程中傳遞array數組類型的參數

注：本文來源於 《  java 實現往oracle存儲過程中傳遞array數組類型的參數  》

最近項目中遇到通過往存儲過程傳遞數組參數的問題， 

浪費了N多個小時，終於有點頭緒。 

具體的代碼就不寫上了，因為項目中存儲過程的調用方法全部是封裝好的（好像現在都這樣，都姓3層，嘿嘿） 

原理： 

1.一維數組 

A.單純的一維數組的話，直接建立一個table類型就可以 

TYPE TYPE_VARCHAR AS TABLE OF VARCHAR2(200);

2.多維數組 

A.多維數組就要稍加修改了，如二維數組 

TYPE TYPE_VARCHAR AS TABLE OF VARCHAR2(200);

TYPE  TYPE_TABLE AS TABLE OF TYPE_VARCHAR;

3.java代碼的實現 

A。首先是connection的問題，connection必須是OracleConnection（java.sql包下的） 

B。必須給Array添加一種數據定義（oracle.sql.ArrayDescriptor） 

C。ARRAY必須是java.sql.Array 

D。好了，開始定義ARRAY 

arrDesc = ArrayDescriptor.createDescriptor("TYPE_TABLE", getNativeConnection(conn)); 
  ARRAY arr = new ARRAY(arrDesc, getNativeConnection(conn), new Object[][]{{"test1","test2"},{"testA","testB"}}); 

從網上搜到為數不多的代碼(僅供參考) 

下面代碼來自ChinaUnix博客（http://blog.chinaunix.net/u2/63586/showart_703439.html） 

-----------------------------------------------------------------------------------
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.CallableStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Types;
import java.util.ArrayList;
import  oracle.sql.ARRAY;
import oracle.sql.ArrayDescriptor;
import org.apache.tomcat.dbcp.dbcp.DelegatingConnection;
public class BussinessLog {
public static ArrayList<Comparable> CancelLog(String sLoginUser, Object[] arrLogID)
{
  ArrayList<Comparable> arrList = new ArrayList<Comparable>();
  Connection conn = null;
  CallableStatement callStmt = null;
  String sql = null;
  ArrayDescriptor arrDesc = null;

  try
  {
   conn = DbConnectionManager.getConnection();
   sql = "{call P_CanceltLog(?,?,?,?)}";
   callStmt = conn.prepareCall(sql);
   arrDesc = ArrayDescriptor.createDescriptor("NUMBERTABLE", getNativeConnection(conn));
   ARRAY arr = new ARRAY(arrDesc, getNativeConnection(conn), arrLogID);
   callStmt.setString(1, sLoginUser);
   callStmt.setObject(2, arr, Types.ARRAY);
   callStmt.registerOutParameter(3, Types.VARCHAR);
   callStmt.registerOutParameter(4, Types.INTEGER);
   callStmt.execute();

    arrList.add(callStmt.getInt(4));
   arrList.add(callStmt.getString(3));
   return arrList;
  } catch (Exception e) {
   System.out.println(e.toString());
  } finally {
   DbAction.clear(conn, callStmt);
  }
  return arrList;
}

public static Connection getNativeConnection(Connection con) throws SQLException {
  if (con instanceof DelegatingConnection) {
   Connection nativeCon = ((DelegatingConnection) con).getInnermostDelegate();
   return (nativeCon != null ? nativeCon : con.getMetaData().getConnection());
  }
  return con;
}
}