mybatis中oracle实现分页效果实例代码

package com.dao;

import java.util.List;
import java.util.Map;

import org.apache.ibatis.session.RowBounds;

import com.model.Student;

public interface StudentMapper {
  /**
   * 分页查询
   */
  public List selectall(RowBounds rb);//需要传RowBounds 类型的参数

}

<&＃63;xml version="1.0" encoding="UTF-8"&＃63;>

 
 
  
    select * from student
  
  
 

package com.util;

import static org.junit.Assert.*;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.ibatis.session.RowBounds;
import org.apache.ibatis.session.SqlSession;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import com.dao.StudentMapper;
import com.model.Student;

public class Jtest {
  private SqlSession ss;
  private StudentMapper sm;
  @Before
  public void setUp() throws Exception {
    ss=SqlSessionUtil.getSqlSession();
    sm=ss.getMapper(StudentMapper.class);
    
  }

  @After
  public void tearDown() throws Exception {
    ss.commit();
    ss.close();
  }

  @Test
  public void selectall() {
    
    //跳过几行
    int offset = 3;
    //取几行
    int limit = 3;
    
    RowBounds rb = new RowBounds(offset, limit);    
    List st=sm.selectall(rb);
    for(Student tt:st){
      System.out.println(tt);
    }
  }

}

package com.dao;
import java.util.List;
import java.util.Map;

import org.apache.ibatis.session.RowBounds;

import com.model.Student;

public interface StudentMapper {
  
  /**
   * 分页查询
   */
  public List selectall(Integer offset, Integer limit );
  
}

<&＃63;xml version="1.0" encoding="UTF-8"&＃63;>

 
  
  
    select * from (select t.*,rownum rownu from STUDENT t 
    where rownum<=#{param1}*#{param2})tt
    where tt.rownu>(#{param1}-1)*#{param2}
  

 

package com.util;

import static org.junit.Assert.*;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.ibatis.session.RowBounds;
import org.apache.ibatis.session.SqlSession;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import com.dao.StudentMapper;
import com.model.Student;

public class Jtest {
  private SqlSession ss;
  private StudentMapper sm;
  @Before
  public void setUp() throws Exception {
    ss=SqlSessionUtil.getSqlSession();
    sm=ss.getMapper(StudentMapper.class);
    
  }

  @After
  public void tearDown() throws Exception {
    ss.commit();
    ss.close();
  }
  
  @Test
  public void selectall() {
    //当前第几页 
    Integer offset = 2;
    //每页行数
    Integer limit = 3;    
    List st=sm.selectall(offset, limit);
    for(Student tt:st){
      System.out.println(tt);
    }
  }

}