mybatis plus 解决in条件不能超过1000的java工具


package xxx.utils;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
import com.baomidou.mybatisplus.core.toolkit.support.SFunction;
import com.baomidou.mybatisplus.extension.conditions.query.LambdaQueryChainWrapper;
import com.baomidou.mybatisplus.extension.conditions.update.LambdaUpdateChainWrapper;
import org.apache.commons.lang3.ObjectUtils;

import java.util.ArrayList;
import java.util.List;

/**
 * @author xhb 2022-01-07
 **/

public class MybatisParameterUtils {


    public static  void cutInParameter(LambdaQueryWrapper wrapper, SFunction column, List coll) throws Exception {
        List> newList = splitList(coll, 900);
        if (ObjectUtils.isEmpty(newList)) {
            throw new Exception("参数错误");
        } else if (newList.size() == 1) {
            wrapper.in(column, newList.get(0));
            return;
        }

        wrapper.and(i -> {
            i.in(column, newList.get(0));
            newList.remove(0);
            for (List objects : newList) {
                i.or().in(column, objects);
            }
        });
    }

    public static  void cutNotInParameter(LambdaQueryWrapper wrapper, SFunction column, List coll) throws Exception {
        List> newList = splitList(coll, 900);
        if (ObjectUtils.isEmpty(newList)) {
            throw new Exception("参数错误");
        } else if (newList.size() == 1) {
            wrapper.notIn(column, newList.get(0));
            return;
        }

        wrapper.and(i -> {
            i.in(column, newList.get(0));
            newList.remove(0);
            for (List objects : newList) {
                i.or().notIn(column, objects);
            }
        });
    }


    public static  void cutInParameter(LambdaQueryChainWrapper wrapper, SFunction column, List coll) throws Exception {
        List> newList = splitList(coll, 900);
        if (ObjectUtils.isEmpty(newList)) {
            throw new Exception("参数错误");
        } else if (newList.size() == 1) {
            wrapper.in(column, newList.get(0));
            return;
        }

        wrapper.and(i -> {
            i.in(column, newList.get(0));
            newList.remove(0);
            for (List objects : newList) {
                i.or().in(column, objects);
            }
        });
    }

    public static  void cutNotInParameter(LambdaQueryChainWrapper wrapper, SFunction column, List coll) throws Exception {
        List> newList = splitList(coll, 900);
        if (ObjectUtils.isEmpty(newList)) {
            throw new Exception("参数错误");
        } else if (newList.size() == 1) {
            wrapper.notIn(column, newList.get(0));
            return;
        }

        wrapper.and(i -> {
            i.in(column, newList.get(0));
            newList.remove(0);
            for (List objects : newList) {
                i.or().notIn(column, objects);
            }
        });
    }

    public static  void cutInParameter(LambdaUpdateWrapper wrapper, SFunction column, List coll) throws Exception {
        List> newList = splitList(coll, 900);
        if (ObjectUtils.isEmpty(newList)) {
            throw new Exception("参数错误");
        } else if (newList.size() == 1) {
            wrapper.in(column, newList.get(0));
            return;
        }

        wrapper.and(i -> {
            i.in(column, newList.get(0));
            newList.remove(0);
            for (List objects : newList) {
                i.or().in(column, objects);
            }
        });
    }

    public static  void cutNotInParameter(LambdaUpdateWrapper wrapper, SFunction column, List coll) throws Exception {
        List> newList = splitList(coll, 900);
        if (ObjectUtils.isEmpty(newList)) {
            throw new Exception("参数错误");
        } else if (newList.size() == 1) {
            wrapper.notIn(column, newList.get(0));
            return;
        }

        wrapper.and(i -> {
            i.in(column, newList.get(0));
            newList.remove(0);
            for (List objects : newList) {
                i.or().notIn(column, objects);
            }
        });
    }


    public static  void cutInParameter(LambdaUpdateChainWrapper wrapper, SFunction column, List coll) throws Exception {
        List> newList = splitList(coll, 900);
        if (ObjectUtils.isEmpty(newList)) {
            throw new Exception("参数错误");
        } else if (newList.size() == 1) {
            wrapper.in(column, newList.get(0));
            return;
        }

        wrapper.and(i -> {
            i.in(column, newList.get(0));
            newList.remove(0);
            for (List objects : newList) {
                i.or().in(column, objects);
            }
        });
    }

    public static  void cutNotInParameter(LambdaUpdateChainWrapper wrapper, SFunction column, List coll) throws Exception {
        List> newList = splitList(coll, 900);
        if (ObjectUtils.isEmpty(newList)) {
            throw new Exception("参数错误");
        } else if (newList.size() == 1) {
            wrapper.notIn(column, newList.get(0));
            return;
        }

        wrapper.and(i -> {
            i.in(column, newList.get(0));
            newList.remove(0);
            for (List objects : newList) {
                i.or().notIn(column, objects);
            }
        });
    }


    public static  List> splitList(List list, int groupSize) {
        int length = list.size();
        // 计算可以分成多少组
        int num = (length + groupSize - 1) / groupSize;
        List> newList = new ArrayList<>(num);
        for (int i = 0; i < num; i++) {
            // 开始位置
            int fromIndex = i * groupSize;
            // 结束位置
            int toIndex = Math.min((i + 1) * groupSize, length);
            newList.add(list.subList(fromIndex, toIndex));
        }
        return newList;
    }
}

用法示例

  //                                   这是一个条件wrapper    get方法的方法引用       一个参数list   
MybatisParameterUtils.cutInParameter(deleteInfoWrapper, Vo::getId, list);

思路就是把条件拆成小于1000的组合条件  写xml同理