JDBC连接数据库中CallableStatement执行有参存储过程及注解其他

Oracle的建有参存储过程的过程

procedure pro_01(v_01 in number,v_02 out varchar2)
as
begin
select name into v_02 from test where id = v_01;
exception
when no_data_found then
dbms_output.put_line('no data');
when too_many_rows then
dbms_output.put_line('too many rows');
end;

JDBC调用存储过程 并取得输出参数 注解代码部分为PreparedStatement对象的更新和查询

import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.sql.Types;

public class CallableTest {
	public static void main(String[] args){
		try {
			Class.forName("oracle.jdbc.driver.OracleDriver");
		} catch (ClassNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		String url = "jdbc:oracle:thin:@localhost:1521:orcl";
		String user = "scott";
		String password = "tiger";
		Connection conn = null;
		CallableStatement cstmt = null;
		ResultSet rs = null;
		try {
			conn = DriverManager.getConnection(url,user,password);
			
//			String sql = "select * from test";
//			String sql ="update test set id = ? where id = ?";
//			cstmt = conn.prepareStatement(sql);
//			rs = cstmt.executeQuery();//查询操作 返回结果集
//			cstmt.setInt(1, 13);
//			cstmt.setInt(2, 12);
//			int count = cstmt.executeUpdate();//更新操作 返回受影响行数
			
			
			String sql = "{call pro_01(?,?)}";//执行存储过程sql语句{call procedure_name}
			cstmt = conn.prepareCall(sql);
			
			cstmt.setInt(1, 13);
			cstmt.registerOutParameter(2, Types.VARCHAR);//注册输出参数
			boolean isExecute = cstmt.execute();//只有执行结果为结果集时才会返回true
			String out = cstmt.getString(2);//获取输出参数，以注入位置为准提取
			System.out.println(out);
			if(isExecute){
				System.out.println("Result");
			}else{
				System.out.println("success");
			}
//			if( rs != null){
////				while (rs.next()) {
////					System.out.println(rs.getInt(1));
////				}
//				System.out.println("what is wrong");
//			}else{
//				System.out.println("execute over");
//			}
			
			
//			System.out.println(count);
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		if(rs != null){
			try {
				rs.close();
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		if(cstmt != null){
			try {
				cstmt.close();
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		if(conn != null){
			try {
				conn.close();
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		
		
	}

}