class="MsoNormal" style="margin: 0cm 0cm 0pt; font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif; font-size: 13px; line-height: 18px;">一:无返回值的存储过程
存储过程为:
CREATE OR REPLACE PROCEDURE TESTA(PARA1 IN?VARCHAR2,PARA2 IN?VARCHAR2)??AS
BEGIN
???INSERT INTO HYQ.B_ID (I_ID,I_NAME) VALUES (PARA1, PARA2);
END TESTA;
然后呢,在java里调用时就用下面的代码:
package com.hyq.src;
?
import java.sql.*;
import java.sql.ResultSet;
?
public class TestProcedureOne {
??public TestProcedureOne() {
??}
??public static void main(String[] args ){
????String driver = "oracle.jdbc.driver.OracleDriver";
????String strUrl = "jdbc:oracle:thin:@127.0.0.1:1521: hyq ";
????Statement stmt = null;
????ResultSet rs = null;
????Connection conn = null;
????CallableStatement cstmt = null;
?
????try {
??????Class.forName(driver);
??????conn =??DriverManager.getConnection(strUrl, " hyq ", " hyq ");
??????CallableStatement proc = null;
??????proc = conn.prepareCall("{ call HYQ.TESTA(?,?) }");
??????proc.setString(1, "100");
??????proc.setString(2, "TestOne");
??????proc.execute();
????}
????catch (SQLException ex2) {
??????ex2.printStackTrace();
????}
????catch (Exception ex2) {
??????ex2.printStackTrace();
????}
????finally{
??????try {
????????if(rs != null){
??????????rs.close();
??????????if(stmt!=null){
????????????stmt.close();
??????????}
??????????if(conn!=null){
????????????conn.close();
??????????}
????????}
??????}
??????catch (SQLException ex1) {
??????}
????}
??}
}
当然了,这就先要求要建张表TESTTB,里面两个字段(I_ID,I_NAME)。
二:有返回值的存储过程(非列表)
存储过程为:
CREATE OR REPLACE PROCEDURE TESTB(PARA1 IN?VARCHAR2,PARA2 OUT VARCHAR2)??AS
BEGIN
???SELECT INTO PARA2 FROM TESTTB WHERE I_ID= PARA1;
END TESTB;
在java里调用时就用下面的代码:
package com.hyq.src;
?
public class TestProcedureTWO {
??public TestProcedureTWO() {
??}
??public static void main(String[] args ){
????String driver = "oracle.jdbc.driver.OracleDriver";
????String strUrl = "jdbc:oracle:thin:@127.0.0.1:1521:hyq";
????Statement stmt = null;
????ResultSet rs = null;
????Connection conn = null;
????try {
??????Class.forName(driver);
??????conn =??DriverManager.getConnection(strUrl, " hyq ", " hyq ");
??????CallableStatement proc = null;
??????proc = conn.prepareCall("{ call HYQ.TESTB(?,?) }");
??????proc.setString(1, "100");
??????proc.registerOutParameter(2, Types.VARCHAR);
??????proc.execute();
??????String testPrint = proc.getString(2);
??????System.out.println("=testPrint=is="+testPrint);
????}
????catch (SQLException ex2) {
??????ex2.printStackTrace();
????}
????catch (Exception ex2) {
??????ex2.printStackTrace();
????}
????finally{
??????try {
????????if(rs != null){
??????????rs.close();
??????????if(stmt!=null){
????????????stmt.close();
??????????}
??????????if(conn!=null){
????????????conn.close();
??????????}
????????}
??????}
??????catch (SQLException ex1) {
??????}
????}
??}
}
?
}
注意,这里的proc.getString(2)中的数值2并非任意的,而是和存储过程中的out列对应的,如果out是在第一个位置,那就是proc.getString(1),如果是第三个位置,就是proc.getString(3),当然也可以同时有多个返回值,那就是再多加几个out参数了。
三:返回列表
由于oracle存储过程没有返回值,它的所有返回值都是通过out参数来替代的,列表同样也不例外,但由于是集合,所以不能用一般的参数,必须要用pagkage了.所以要分两部分,
1,??建一个程序包。如下:
CREATE OR REPLACE PACKAGE TESTPACKAGE??AS
?TYPE Test_CURSOR IS REF CURSOR;
end TESTPACKAGE;
2,建立存储过程,存储过程为:
CREATE OR REPLACE PROCEDURE TESTC(p_CURSOR out TESTPACKAGE.Test_CURSOR) IS
BEGIN
????OPEN p_CURSOR FOR SELECT * FROM HYQ.TESTTB;
END TESTC;
可以看到,它是把游标(可以理解为一个指针),作为一个out?参数来返回值的。
在java里调用时就用下面的代码:
package com.hyq.src;
import java.sql.*;
import java.io.OutputStream;
import java.io.Writer;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import oracle.jdbc.driver.*;
?
?
public class TestProcedureTHREE {
??public TestProcedureTHREE() {
??}
??public static void main(String[] args ){
????String driver = "oracle.jdbc.driver.OracleDriver";
????String strUrl = "jdbc:oracle:thin:@127.0.0.1:1521:hyq";
????Statement stmt = null;
????ResultSet rs = null;
????Connection conn = null;
?
????try {
??????Class.forName(driver);
??????conn =??DriverManager.getConnection(strUrl, "hyq", "hyq");
?
??????CallableStatement proc = null;
??????proc = conn.prepareCall("{ call hyq.testc(?) }");
??????proc.registerOutParameter(1,oracle.jdbc.OracleTypes.CURSOR);
??????proc.execute();
??????rs = (ResultSet)proc.getObject(1);
?
??????while(rs.next())
??????{
??????????System.out.println("<tr><td>" + rs.getString(1) + "</td><td>"+rs.getString(2)+"</td></tr>");
??????}
????}
????catch (SQLException ex2) {
??????ex2.printStackTrace();
????}
????catch (Exception ex2) {
??????ex2.printStackTrace();
????}
????finally{
??????try {
????????if(rs != null){
??????????rs.close();
??????????if(stmt!=null){
????????????stmt.close();
??????????}
??????????if(conn!=null){
????????????conn.close();
??????????}
????????}
??????}
??????catch (SQLException ex1) {
??????}
????}
??}
}
在这里要注意,在执行前一定要先把oracle的驱动包放到class路径里,否则会报错的。