src/com/xx/supermarket/pagehelper/PageHelper.java

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/*
	The MIT License (MIT)

	Copyright (c) 2014 abel533@gmail.com

	Permission is hereby granted, free of charge, to any person obtaining a copy
	of this software and associated documentation files (the "Software"), to deal
	in the Software without restriction, including without limitation the rights
	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	copies of the Software, and to permit persons to whom the Software is
	furnished to do so, subject to the following conditions:

	The above copyright notice and this permission notice shall be included in
	all copies or substantial portions of the Software.

	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	THE SOFTWARE.
*/

package com.xx.supermarket.pagehelper;

import org.apache.ibatis.executor.Executor;
import org.apache.ibatis.mapping.MappedStatement;
import org.apache.ibatis.mapping.SqlSource;
import org.apache.ibatis.plugin.*;
import org.apache.ibatis.session.ResultHandler;
import org.apache.ibatis.session.RowBounds;

import java.util.List;
import java.util.Properties;

/**
 * Mybatis - 通用分页拦截器
 *
 * @author liuzh/abel533/isea533
 * @version 3.3.0
 *          项目地址 : http://git.oschina.net/free/Mybatis_PageHelper
 */
@SuppressWarnings({"rawtypes", "unchecked"})
@Intercepts(@Signature(type = Executor.class, method = "query", args = {MappedStatement.class, Object.class, RowBounds.class, ResultHandler.class}))
public class PageHelper implements Interceptor {
    private static final ThreadLocal<Page> LOCAL_PAGE = new ThreadLocal<Page>();
    //sql工具类
    private SqlUtil SQLUTIL;
    //RowBounds参数offset作为PageNum使用 - 默认不使用
    private boolean offsetAsPageNum = false;
    //RowBounds是否进行count查询 - 默认不查询
    private boolean rowBoundsWithCount = false;
    //当设置为true的时候，如果pagesize设置为0（或RowBounds的limit=0），就不执行分页
    private boolean pageSizeZero = false;
    //分页合理化
    private boolean reasonable = false;

    /**
     * 开始分页