Spring的JdbcTemplate调用存储过程

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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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