java 实现往oracle存储过程中传递array数组类型的参数

注：本文来源于 《  java 实现往oracle存储过程中传递array数组类型的参数  》

最近项目中遇到通过往存储过程传递数组参数的问题， 

浪费了N多个小时，终于有点头绪。 

具体的代码就不写上了，因为项目中存储过程的调用方法全部是封装好的（好像现在都这样，都姓3层，嘿嘿） 

原理： 

1.一维数组 

A.单纯的一维数组的话，直接建立一个table类型就可以 

TYPE TYPE_VARCHAR AS TABLE OF VARCHAR2(200);

2.多维数组 

A.多维数组就要稍加修改了，如二维数组 

TYPE TYPE_VARCHAR AS TABLE OF VARCHAR2(200);

TYPE  TYPE_TABLE AS TABLE OF TYPE_VARCHAR;

3.java代码的实现 

A。首先是connection的问题，connection必须是OracleConnection（java.sql包下的） 

B。必须给Array添加一种数据定义（oracle.sql.ArrayDescriptor） 

C。ARRAY必须是java.sql.Array 

D。好了，开始定义ARRAY 

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

从网上搜到为数不多的代码(仅供参考) 

下面代码来自ChinaUnix博客（http://blog.chinaunix.net/u2/63586/showart_703439.html） 

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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;
}
}