java往oracle存储过程中传递数组方法小结

java往oracle存储过程中传递数组方法小结，下面是一个例子，比如存储过程中要

接受一个数组，并且输出一个数组，则先注意数组在oracle中的定义方法如下：

CREATE TYPE array_table AS TABLE OF VARCHAR2 (50); -- Array of String

CREATE TYPE array_int AS TABLE OF NUMBER;          -- Array of integers

接下来，一个存储过程，接受一个数组的输入，一个数组的输出，如下：

CREATE OR REPLACE PROCEDURE SchemaName.proc1 (p_array     IN     array_table,                                              len            OUT NUMBER,                                              p_arr_int      OUT array_int)AS   v_count

NUMBER;BEGIN   p_arr_int := NEW array_int ();
p_arr_int.EXTEND (10);
len := p_array.COUNT;
v_count := 0;
FOR i IN 1 .. p_array.COUNT   LOOP
DBMS_OUTPUT.put_line (p_array (i));
p_arr_int (i) := v_count;
v_count := v_count + 1;
END LOOP;END;/

  然后是JAVA代码，传入一个数组，返回一个数组的输出

import java.math.BigDecimal;
import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Types;
import oracle.jdbc.OracleCallableStatement;
import oracle.jdbc.internal.OracleTypes;
import oracle.sql.ARRAY;
import oracle.sql.ArrayDescriptor;
public class TestDatabase {
public static void passArray()
{
try{
Class.forName("oracle.jdbc.OracleDriver");
Connection con = DriverManager.getConnection("jdbc:oracle:thin:url ","UserName","Password");;                         String array[] = {"one", "two", "three","four"};

ArrayDescriptor des = ArrayDescriptor.createDescriptor("SchemaName.ARRAY_TABLE",
con);
ARRAY array_to_pass = new ARRAY(des,con,array);

CallableStatement st = con.prepareCall("call SchemaName.proc1(?,?,?)");
st.setArray(1, array_to_pass);             st.registerOutParameter(2, Types.INTEGER);            st.registerOutParameter(3,OracleTypes.ARRAY,"SchemaName.ARRAY_INT");

st.execute();
System.out.println("size : "+st.getInt(2));
// Retrieving array from the resultset of the procedure after execution -

ARRAY arr = ((OracleCallableStatement)st).getARRAY(3);
BigDecimal[] recievedArray = (BigDecimal[])(arr.getArray());
for(int i=0;i<recievedArray.length;i++)                System.out.println("element" + i + ":" + recievedArray[i] + "\n");
} catch(Exception e) {
System.out.println(e);
}
}
public static void main(String args[])
{
passArray();
}

}