Spring如何使用JdbcTemplate调用存储过程的三种情况

jopen 10年前

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;    
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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')");             }           }     
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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 ;   
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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              }           });         }   
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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;  
</div> </div> 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。  </span>
    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;  
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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);           }         }   
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作者:伫望碧落 出处:http://blog.csdn.net/cl05300629