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
1 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
1 TYPE TYPE_VARCHAR AS TABLE OF VARCHAR2(200); 2 3 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)
1 ----------------------------------------------------------------------------------- 2 import java.sql.Connection; 3 import java.sql.PreparedStatement; 4 import java.sql.CallableStatement; 5 import java.sql.ResultSet; 6 import java.sql.SQLException; 7 import java.sql.Types; 8 import java.util.ArrayList; 9 import oracle.sql.ARRAY; 10 import oracle.sql.ArrayDescriptor; 11 import org.apache.tomcat.dbcp.dbcp.DelegatingConnection; 12 public class BussinessLog { 13 public static ArrayList<Comparable> CancelLog(String sLoginUser, Object[] arrLogID) 14 { 15 ArrayList<Comparable> arrList = new ArrayList<Comparable>(); 16 Connection conn = null; 17 CallableStatement callStmt = null; 18 String sql = null; 19 ArrayDescriptor arrDesc = null; 20 21 try 22 { 23 conn = DbConnectionManager.getConnection(); 24 sql = "{call P_CanceltLog(?,?,?,?)}"; 25 callStmt = conn.prepareCall(sql); 26 arrDesc = ArrayDescriptor.createDescriptor("NUMBERTABLE", getNativeConnection(conn)); 27 ARRAY arr = new ARRAY(arrDesc, getNativeConnection(conn), arrLogID); 28 callStmt.setString(1, sLoginUser); 29 callStmt.setObject(2, arr, Types.ARRAY); 30 callStmt.registerOutParameter(3, Types.VARCHAR); 31 callStmt.registerOutParameter(4, Types.INTEGER); 32 callStmt.execute(); 33 34 arrList.add(callStmt.getInt(4)); 35 arrList.add(callStmt.getString(3)); 36 return arrList; 37 } catch (Exception e) { 38 System.out.println(e.toString()); 39 } finally { 40 DbAction.clear(conn, callStmt); 41 } 42 return arrList; 43 } 44 45 public static Connection getNativeConnection(Connection con) throws SQLException { 46 if (con instanceof DelegatingConnection) { 47 Connection nativeCon = ((DelegatingConnection) con).getInnermostDelegate(); 48 return (nativeCon != null ? nativeCon : con.getMetaData().getConnection()); 49 } 50 return con; 51 } 52 }
原文地址:https://www.cnblogs.com/ios9/p/8858210.html
时间: 2024-10-11 12:44:33