pl/sql 编写 Oracle分页的存储过程 Java调用该过程

--分页，输入：tableName、page_size、pageNow，输出：myrows、myPageCount、my_cursor
--1、定义一个游标类型
create or replace package pagePackage as
type page_cursor is ref cursor;
end pagePackage;
/
--2、
create or replace procedure fenye
(tableName in varchar2,  --表名
page_size in number,   --每页记录数
pageNow  in number, --当前页
myrows  out number, -- 总记录数
myPageCount out number, --总页数
my_cursor out pagePackage.page_cursor --返回的结果集
)is
v_sql varchar2(1000);
v_begin number := (pageNow-1)*page_size+1;
v_end number := pageNow*page_size;
begin
v_sql :=  'select * from (select t1.*,rownum rn from (select * from '||tableName
||')t1 where rownum<='||v_end||' )where rn>='||v_begin;
open my_cursor for v_sql;
v_sql :='select count(*) from '|| tableName;
execute immediate v_sql into myrows;
if mod(myrows,page_size) =0 then
myPageCount := myrows/page_size;
else myPageCount := myrows/page_size+1;
end if;
end;
/

@Test
public void testWithReturn_page() {
try {
Class.forName("oracle.jdbc.driver.OracleDriver");
Connection conn = DriverManager.getConnection(
"jdbc:oracle:thin:@192.168.202.129:1521:orcl", "scott",
"tiger");
CallableStatement cs = conn
.prepareCall("{call fenye(?,?,?,?,?,?)}");
cs.setString(1, "emp");
cs.setInt(2, 3);
cs.setInt(3, 2);
cs.registerOutParameter(4, oracle.jdbc.OracleTypes.NUMBER);
cs.registerOutParameter(5, oracle.jdbc.OracleTypes.NUMBER);
cs.registerOutParameter(6, oracle.jdbc.OracleTypes.CURSOR);
cs.execute();

// 得到结果集
ResultSet rs = (ResultSet) cs.getObject(6);
while (rs.next()) {
System.out.println(rs.getInt("deptno") + " --- "
+ rs.getInt("empno") + " --- " + rs.getString("ename")
+ " --- " + rs.getString("job") + " --- "
+ rs.getInt("sal"));
}

int rs2 = cs.getInt(4);
int rs3 = cs.getInt(5);
System.out.println("allRecord:" + rs2 + "  ,allPage:" + rs3);

cs.close();
conn.close();
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
}