Spring的SimpleJdbcTemplate将存储过程的调用进行了良好的封装,下面列出使用JdbcTemplate调用Oracle存储过程的三种情况:
一、无返回值的存储过程调用
1、存储过程代码:
- create or replace procedure sp_insert_table(param1 in varchar2,param2 in varchar2) as
- begin
- insert into table MyTable (id,name) values ('param1 ','param2');
- end sp_insert_table;
2、JdbcTemplate调用该存储过程代码:- package com.dragon.test;
- import org.springframework.jdbc.core.JdbcTemplate;
- public class JdbcTemplateTest {
- private JdbcTemplate jdbcTemplate;
- public void setJdbcTemplate(JdbcTemplate jdbcTemplate) {
- this.jdbcTemplate = jdbcTemplate;
- }
- public void test(){
- this.jdbcTemplate.execute("call sp_insert_table('100001')");
- }
- }
二、有返回值的存储过程(非结果集)
1、存储过程代码:
- create or replace procedure sp_select_table (param1 in varchar2,param2 out varchar2) as
- begin select into param2 from MyTable where ID = param1 ;
- end sp_insert_table ;
2、JdbcTemplate调用该存储过程代码:
- public void test() {
- String param2Value = (String) jdbcTemplate.execute(
- new CallableStatementCreator() {
- public CallableStatement createCallableStatement(Connection con) throws SQLException {
- String storedProc = "{call sp_select_table (?,?)}";// 调用的sql
- CallableStatement cs = con.prepareCall(storedProc);
- cs.setString(1, "p1");// 设置输入参数的值
- cs.registerOutParameter(2,OracleTypes.Varchar);// 注册输出参数的类型
- return cs;
- }
- }, new CallableStatementCallback() {
- public Object doInCallableStatement(CallableStatement cs) throws SQLException, DataAccessException {
- cs.execute();
- return cs.getString(2);// 获取输出参数的值
- }
- });
- }
三、有返回值的存储过程(结果集)
1、存储过程代码:先创建程序包,因为Oracle存储过程所有返回值都是通过out参数返回的,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package:
- create or replace package mypackage as
- type my_cursor is ref cursor;
- end mypackage;
2、存储过程代码:可以看到,列表是通过把游标作为一个out参数来返回的。 - create or replace procedure sp_list_table(param1 in varchar2,param2 out mypackage.my_cursor) is
- begin
- open my_cursor for select * from myTable;
- end sp_list_table;
3、JdbcTemplate调用该存储过程代码:
- public void test() {
- List resultList = (List) jdbcTemplate.execute(
- new CallableStatementCreator() {
- public CallableStatement createCallableStatement(Connection con) throws SQLException {
- String storedProc = "{call sp_list_table(?,?)}";// 调用的sql
- CallableStatement cs = con.prepareCall(storedProc);
- cs.setString(1, "p1");// 设置输入参数的值
- cs.registerOutParameter(2, OracleTypes.CURSOR);// 注册输出参数的类型
- return cs;
- }
- }, new CallableStatementCallback() {
- public Object doInCallableStatement(CallableStatement cs) throws SQLException,DataAccessException {
- List resultsMap = new ArrayList();
- cs.execute();
- ResultSet rs = (ResultSet) cs.getObject(2);// 获取游标一行的值
- while (rs.next()) {// 转换每行的返回值到Map中
- Map rowMap = new HashMap();
- rowMap.put("id", rs.getString("id"));
- rowMap.put("name", rs.getString("name"));
- resultsMap.add(rowMap);
- }
- rs.close();
- return resultsMap;
- }
- });
- for (int i = 0; i < resultList.size(); i++) {
- Map rowMap = (Map) resultList.get(i);
- String id = rowMap.get("id").toString();
- String name = rowMap.get("name").toString();
- System.out.println("id=" + id + ";name=" + name);
- }
- }
作者:伫望碧落 出处:http://blog.csdn.net/cl05300629
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