springboot+mybatis+thymeleaf利用pagehelper实现多条件查询+分页

我们都知道在开发过程中多条件查询+分页一直是一个老生常谈得问题，那么今天就来浅谈一下springboot是如何实现得，要想实现分页这个功能那我们就得在确定每页显示行数得情况下知道总页数等等一些变量，当然，这些变量都可以通过查询数据库得知，今天所要讲的是如何在查询一遍数据库得前提下得到这些变量以及我们多条件查询出来得变量集合，话不多话，请看代码

前台页面代码

<form  th:action="@{'/user/findUserByCondition'}">
                            
                            
         <input name="username" class="form-control" id="H_user" type="text"
                                    placeholder="请输入用户名..." />
                            
                            
        <input name="email" class="form-control" id="H_key" type="text"
                                    placeholder="请输入邮箱..." />
                            
                            
        <input type="submit" value="查询" />
                            
</form>

这里我用的是form表单得形式传数据，当然也可以用ajax得形式，如果用ajax得形式传数据得话那controller层就得变化了，因为需要接受你传过来得数据，感兴趣得朋友可以自己试一试

<div>
                                <div class="clearfix">
                                    <ul class="pagination m-b-5 pull-right">
                                        <li th:if="${users.hasPreviousPage}"><a
                                            th:href="@{'/user/touser?pageIndex='+${users.prePage}}"
                                            aria-label="Previous"> <i class="fa fa-angle-left"></i>&nbsp;上一页
                                        </a></li>

                                        <th:block th:each="nav : ${users.navigatepageNums}">
                                            <li th:class="${nav==users.pageNum}?'active':''"><a
                                                th:href="@{'/user/touser?pageIndex='+${nav}}"
                                                th:text="${nav}"></a></li>
                                        </th:block>

                                        <th:block th:if="${users.hasNextPage}">
                                            <li><a
                                                th:href="@{'/user/touser?pageIndex='+${users.nextPage}}"
                                                aria-label="Next"> 下一页&nbsp;<i class="fa fa-angle-right"></i>
                                            </a></li>
                                        </th:block>

                                        <li><span th:text="'共'+${users.pages}+'页'"></span></li>
                                    </ul>
                                </div>
                            </div>

这是分页得功能，简而言之，就是上一页下一页或者跳转到哪一页等等

@RequestMapping("/touser")
    public String toUser(@RequestParam(value = "pageIndex", defaultValue = "1") Integer pageIndex,
            @RequestParam(value = "pageSize", defaultValue = "4") Integer pageSize, HttpServletRequest request,
            HttpServletResponse response) {
        UserVoExample userVoExample = new UserVoExample();
        userVoExample.setOrderByClause("created desc");
        userVoExample.createCriteria();
        
        
        userVoExample.setUsername(Common.username);
        userVoExample.setEmail(Common.email);
        
        PageInfo<User> pageInfoUsers = userService.getUserWithPage1(userVoExample, pageIndex, pageSize);
        request.setAttribute("users", pageInfoUsers);
        return "user_page";
    }

    @RequestMapping("/findUserByCondition")
    public String findUserByCondition(User user,
            @RequestParam(value = "pageIndex", defaultValue = "1") Integer pageIndex,
            @RequestParam(value = "pageSize", defaultValue = "4") Integer pageSize, HttpServletRequest request) {
        UserVoExample userVoExample = new UserVoExample();
        userVoExample.setOrderByClause("created desc");
        userVoExample.createCriteria();
        
        Common.username = user.getUsername();
        Common.email = user.getEmail();
        
        String tusername=Common.username;
        String temail=Common.email;
        userVoExample.setUsername(tusername);
        userVoExample.setEmail(temail);
        
        PageInfo<User> pageInfoUsers = userService.getUserWithPage1(userVoExample, pageIndex, pageSize);
        request.setAttribute("users", pageInfoUsers);
        return "user_page";
    }

这是控制层得代码，里面得Common是提供得一个公共类，用于存放查询得多条件，代码如下：

//公共类
public class Common {

    public static String username=null;
    public static String email=null;
    
}

上述控制层还牵扯到一个PageInfo类，这个类中拥有上一页，下一页，总页数等等属性，是专门为我们分页量身打造得

下面看我们得Service层

@Override
    public PageInfo<User> getUserWithPage1(UserVoExample commentVoExample, Integer pageIndex, Integer pageSize) {
        PageHelper.startPage(pageIndex, pageSize);
        List<User>users=userDao.findUserByCondition(commentVoExample);
        
        return new PageInfo<>(users, 3);
    }

上述代码得UserVoExample类是多条件得类以及分页，具体代码如下

package com.gateway.entity;

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

public class UserVoExample {
    
    protected String orderByClause;

    protected boolean distinct;

    protected List<Criteria> oredCriteria;
    
    
    private String username;//多条件得属性
    private String email;//多条件得属性
    
    
    

//    private Integer limit;
//
//    private Integer offset;

    

    public UserVoExample() {
        oredCriteria = new ArrayList<Criteria>();
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public void setOrderByClause(String orderByClause) {
        this.orderByClause = orderByClause;
    }

    public String getOrderByClause() {
        return orderByClause;
    }

    public void setDistinct(boolean distinct) {
        this.distinct = distinct;
    }

    public boolean isDistinct() {
        return distinct;
    }

    public List<Criteria> getOredCriteria() {
        return oredCriteria;
    }

    public void or(Criteria criteria) {
        oredCriteria.add(criteria);
    }

    public Criteria or() {
        Criteria criteria = createCriteriaInternal();
        oredCriteria.add(criteria);
        return criteria;
    }

    public Criteria createCriteria() {
        Criteria criteria = createCriteriaInternal();
        if (oredCriteria.size() == 0) {
            oredCriteria.add(criteria);
        }
        return criteria;
    }

    protected Criteria createCriteriaInternal() {
        Criteria criteria = new Criteria();
        return criteria;
    }

    public void clear() {
        oredCriteria.clear();
        orderByClause = null;
        distinct = false;
    }

//    public void setLimit(Integer limit) {
//        this.limit = limit;
//    }
//
//    public Integer getLimit() {
//        return limit;
//    }
//
//    public void setOffset(Integer offset) {
//        this.offset = offset;
//    }
//
//    public Integer getOffset() {
//        return offset;
//    }

    protected abstract static class GeneratedCriteria {
        protected List<Criterion> criteria;

        protected GeneratedCriteria() {
            super();
            criteria = new ArrayList<Criterion>();
        }

        public boolean isValid() {
            return criteria.size() > 0;
        }

        public List<Criterion> getAllCriteria() {
            return criteria;
        }

        public List<Criterion> getCriteria() {
            return criteria;
        }

        protected void addCriterion(String condition) {
            if (condition == null) {
                throw new RuntimeException("Value for condition cannot be null");
            }
            criteria.add(new Criterion(condition));
        }

        protected void addCriterion(String condition, Object value, String property) {
            if (value == null) {
                throw new RuntimeException("Value for " + property + " cannot be null");
            }
            criteria.add(new Criterion(condition, value));
        }

        protected void addCriterion(String condition, Object value1, Object value2, String property) {
            if (value1 == null || value2 == null) {
                throw new RuntimeException("Between values for " + property + " cannot be null");
            }
            criteria.add(new Criterion(condition, value1, value2));
        }

        // arjen
        public Criteria andTypeEqualTo(String value) {
            addCriterion("type =", value, "type");
            return (Criteria) this;
        }

        public Criteria andUidIsNull() {
            addCriterion("uid is null");
            return (Criteria) this;
        }

        public Criteria andUidIsNotNull() {
            addCriterion("uid is not null");
            return (Criteria) this;
        }

        public Criteria andUidEqualTo(Integer value) {
            addCriterion("uid =", value, "uid");
            return (Criteria) this;
        }

        public Criteria andUidNotEqualTo(Integer value) {
            addCriterion("uid <>", value, "uid");
            return (Criteria) this;
        }

        public Criteria andUidGreaterThan(Integer value) {
            addCriterion("uid >", value, "uid");
            return (Criteria) this;
        }

        public Criteria andUidGreaterThanOrEqualTo(Integer value) {
            addCriterion("uid >=", value, "uid");
            return (Criteria) this;
        }

        public Criteria andUidLessThan(Integer value) {
            addCriterion("uid <", value, "uid");
            return (Criteria) this;
        }

        public Criteria andUidLessThanOrEqualTo(Integer value) {
            addCriterion("uid <=", value, "uid");
            return (Criteria) this;
        }

        public Criteria andUidIn(List<Integer> values) {
            addCriterion("uid in", values, "uid");
            return (Criteria) this;
        }

        public Criteria andUidNotIn(List<Integer> values) {
            addCriterion("uid not in", values, "uid");
            return (Criteria) this;
        }

        public Criteria andUidBetween(Integer value1, Integer value2) {
            addCriterion("uid between", value1, value2, "uid");
            return (Criteria) this;
        }

        public Criteria andUidNotBetween(Integer value1, Integer value2) {
            addCriterion("uid not between", value1, value2, "uid");
            return (Criteria) this;
        }

        public Criteria andUsernameIsNull() {
            addCriterion("username is null");
            return (Criteria) this;
        }

        public Criteria andUsernameIsNotNull() {
            addCriterion("username is not null");
            return (Criteria) this;
        }

        public Criteria andUsernameEqualTo(String value) {
            addCriterion("username =", value, "username");
            return (Criteria) this;
        }

        public Criteria andUsernameNotEqualTo(String value) {
            addCriterion("username <>", value, "username");
            return (Criteria) this;
        }

        public Criteria andUsernameGreaterThan(String value) {
            addCriterion("username >", value, "username");
            return (Criteria) this;
        }

        public Criteria andUsernameGreaterThanOrEqualTo(String value) {
            addCriterion("username >=", value, "username");
            return (Criteria) this;
        }

        public Criteria andUsernameLessThan(String value) {
            addCriterion("username <", value, "username");
            return (Criteria) this;
        }

        public Criteria andUsernameLessThanOrEqualTo(String value) {
            addCriterion("username <=", value, "username");
            return (Criteria) this;
        }

        public Criteria andUsernameLike(String value) {
            addCriterion("username like", value, "username");
            return (Criteria) this;
        }

        public Criteria andUsernameNotLike(String value) {
            addCriterion("username not like", value, "username");
            return (Criteria) this;
        }

        public Criteria andUsernameIn(List<String> values) {
            addCriterion("username in", values, "username");
            return (Criteria) this;
        }

        public Criteria andUsernameNotIn(List<String> values) {
            addCriterion("username not in", values, "username");
            return (Criteria) this;
        }

        public Criteria andUsernameBetween(String value1, String value2) {
            addCriterion("username between", value1, value2, "username");
            return (Criteria) this;
        }

        public Criteria andUsernameNotBetween(String value1, String value2) {
            addCriterion("username not between", value1, value2, "username");
            return (Criteria) this;
        }

        public Criteria andPasswordIsNull() {
            addCriterion("password is null");
            return (Criteria) this;
        }

        public Criteria andPasswordIsNotNull() {
            addCriterion("password is not null");
            return (Criteria) this;
        }

        public Criteria andPasswordEqualTo(String value) {
            addCriterion("password =", value, "password");
            return (Criteria) this;
        }

        public Criteria andPasswordNotEqualTo(String value) {
            addCriterion("password <>", value, "password");
            return (Criteria) this;
        }

        public Criteria andPasswordGreaterThan(String value) {
            addCriterion("password >", value, "password");
            return (Criteria) this;
        }

        public Criteria andPasswordGreaterThanOrEqualTo(String value) {
            addCriterion("password >=", value, "password");
            return (Criteria) this;
        }

        public Criteria andPasswordLessThan(String value) {
            addCriterion("password <", value, "password");
            return (Criteria) this;
        }

        public Criteria andPasswordLessThanOrEqualTo(String value) {
            addCriterion("password <=", value, "password");
            return (Criteria) this;
        }

        public Criteria andPasswordLike(String value) {
            addCriterion("password like", value, "password");
            return (Criteria) this;
        }

        public Criteria andPasswordNotLike(String value) {
            addCriterion("password not like", value, "password");
            return (Criteria) this;
        }

        public Criteria andPasswordIn(List<String> values) {
            addCriterion("password in", values, "password");
            return (Criteria) this;
        }

        public Criteria andPasswordNotIn(List<String> values) {
            addCriterion("password not in", values, "password");
            return (Criteria) this;
        }

        public Criteria andPasswordBetween(String value1, String value2) {
            addCriterion("password between", value1, value2, "password");
            return (Criteria) this;
        }

        public Criteria andPasswordNotBetween(String value1, String value2) {
            addCriterion("password not between", value1, value2, "password");
            return (Criteria) this;
        }

        public Criteria andEmailIsNull() {
            addCriterion("email is null");
            return (Criteria) this;
        }

        public Criteria andEmailIsNotNull() {
            addCriterion("email is not null");
            return (Criteria) this;
        }

        public Criteria andEmailEqualTo(String value) {
            addCriterion("email =", value, "email");
            return (Criteria) this;
        }

        public Criteria andEmailNotEqualTo(String value) {
            addCriterion("email <>", value, "email");
            return (Criteria) this;
        }

        public Criteria andEmailGreaterThan(String value) {
            addCriterion("email >", value, "email");
            return (Criteria) this;
        }

        public Criteria andEmailGreaterThanOrEqualTo(String value) {
            addCriterion("email >=", value, "email");
            return (Criteria) this;
        }

        public Criteria andEmailLessThan(String value) {
            addCriterion("email <", value, "email");
            return (Criteria) this;
        }

        public Criteria andEmailLessThanOrEqualTo(String value) {
            addCriterion("email <=", value, "email");
            return (Criteria) this;
        }

        public Criteria andEmailLike(String value) {
            addCriterion("email like", value, "email");
            return (Criteria) this;
        }

        public Criteria andEmailNotLike(String value) {
            addCriterion("email not like", value, "email");
            return (Criteria) this;
        }

        public Criteria andEmailIn(List<String> values) {
            addCriterion("email in", values, "email");
            return (Criteria) this;
        }

        public Criteria andEmailNotIn(List<String> values) {
            addCriterion("email not in", values, "email");
            return (Criteria) this;
        }

        public Criteria andEmailBetween(String value1, String value2) {
            addCriterion("email between", value1, value2, "email");
            return (Criteria) this;
        }

        public Criteria andEmailNotBetween(String value1, String value2) {
            addCriterion("email not between", value1, value2, "email");
            return (Criteria) this;
        }

        public Criteria andHomeUrlIsNull() {
            addCriterion("home_url is null");
            return (Criteria) this;
        }

        public Criteria andHomeUrlIsNotNull() {
            addCriterion("home_url is not null");
            return (Criteria) this;
        }

        public Criteria andHomeUrlEqualTo(String value) {
            addCriterion("home_url =", value, "homeUrl");
            return (Criteria) this;
        }

        public Criteria andHomeUrlNotEqualTo(String value) {
            addCriterion("home_url <>", value, "homeUrl");
            return (Criteria) this;
        }

        public Criteria andHomeUrlGreaterThan(String value) {
            addCriterion("home_url >", value, "homeUrl");
            return (Criteria) this;
        }

        public Criteria andHomeUrlGreaterThanOrEqualTo(String value) {
            addCriterion("home_url >=", value, "homeUrl");
            return (Criteria) this;
        }

        public Criteria andHomeUrlLessThan(String value) {
            addCriterion("home_url <", value, "homeUrl");
            return (Criteria) this;
        }

        public Criteria andHomeUrlLessThanOrEqualTo(String value) {
            addCriterion("home_url <=", value, "homeUrl");
            return (Criteria) this;
        }

        public Criteria andHomeUrlLike(String value) {
            addCriterion("home_url like", value, "homeUrl");
            return (Criteria) this;
        }

        public Criteria andHomeUrlNotLike(String value) {
            addCriterion("home_url not like", value, "homeUrl");
            return (Criteria) this;
        }

        public Criteria andHomeUrlIn(List<String> values) {
            addCriterion("home_url in", values, "homeUrl");
            return (Criteria) this;
        }

        public Criteria andHomeUrlNotIn(List<String> values) {
            addCriterion("home_url not in", values, "homeUrl");
            return (Criteria) this;
        }

        public Criteria andHomeUrlBetween(String value1, String value2) {
            addCriterion("home_url between", value1, value2, "homeUrl");
            return (Criteria) this;
        }

        public Criteria andHomeUrlNotBetween(String value1, String value2) {
            addCriterion("home_url not between", value1, value2, "homeUrl");
            return (Criteria) this;
        }

        public Criteria andScreenNameIsNull() {
            addCriterion("screen_name is null");
            return (Criteria) this;
        }

        public Criteria andScreenNameIsNotNull() {
            addCriterion("screen_name is not null");
            return (Criteria) this;
        }

        public Criteria andScreenNameEqualTo(String value) {
            addCriterion("screen_name =", value, "screenName");
            return (Criteria) this;
        }

        public Criteria andScreenNameNotEqualTo(String value) {
            addCriterion("screen_name <>", value, "screenName");
            return (Criteria) this;
        }

        public Criteria andScreenNameGreaterThan(String value) {
            addCriterion("screen_name >", value, "screenName");
            return (Criteria) this;
        }

        public Criteria andScreenNameGreaterThanOrEqualTo(String value) {
            addCriterion("screen_name >=", value, "screenName");
            return (Criteria) this;
        }

        public Criteria andScreenNameLessThan(String value) {
            addCriterion("screen_name <", value, "screenName");
            return (Criteria) this;
        }

        public Criteria andScreenNameLessThanOrEqualTo(String value) {
            addCriterion("screen_name <=", value, "screenName");
            return (Criteria) this;
        }

        public Criteria andScreenNameLike(String value) {
            addCriterion("screen_name like", value, "screenName");
            return (Criteria) this;
        }

        public Criteria andScreenNameNotLike(String value) {
            addCriterion("screen_name not like", value, "screenName");
            return (Criteria) this;
        }

        public Criteria andScreenNameIn(List<String> values) {
            addCriterion("screen_name in", values, "screenName");
            return (Criteria) this;
        }

        public Criteria andScreenNameNotIn(List<String> values) {
            addCriterion("screen_name not in", values, "screenName");
            return (Criteria) this;
        }

        public Criteria andScreenNameBetween(String value1, String value2) {
            addCriterion("screen_name between", value1, value2, "screenName");
            return (Criteria) this;
        }

        public Criteria andScreenNameNotBetween(String value1, String value2) {
            addCriterion("screen_name not between", value1, value2, "screenName");
            return (Criteria) this;
        }

        public Criteria andCreatedIsNull() {
            addCriterion("created is null");
            return (Criteria) this;
        }

        public Criteria andCreatedIsNotNull() {
            addCriterion("created is not null");
            return (Criteria) this;
        }

        public Criteria andCreatedEqualTo(Integer value) {
            addCriterion("created =", value, "created");
            return (Criteria) this;
        }

        public Criteria andCreatedNotEqualTo(Integer value) {
            addCriterion("created <>", value, "created");
            return (Criteria) this;
        }

        public Criteria andCreatedGreaterThan(Integer value) {
            addCriterion("created >", value, "created");
            return (Criteria) this;
        }

        public Criteria andCreatedGreaterThanOrEqualTo(Integer value) {
            addCriterion("created >=", value, "created");
            return (Criteria) this;
        }

        public Criteria andCreatedLessThan(Integer value) {
            addCriterion("created <", value, "created");
            return (Criteria) this;
        }

        public Criteria andCreatedLessThanOrEqualTo(Integer value) {
            addCriterion("created <=", value, "created");
            return (Criteria) this;
        }

        public Criteria andCreatedIn(List<Integer> values) {
            addCriterion("created in", values, "created");
            return (Criteria) this;
        }

        public Criteria andCreatedNotIn(List<Integer> values) {
            addCriterion("created not in", values, "created");
            return (Criteria) this;
        }

        public Criteria andCreatedBetween(Integer value1, Integer value2) {
            addCriterion("created between", value1, value2, "created");
            return (Criteria) this;
        }

        public Criteria andCreatedNotBetween(Integer value1, Integer value2) {
            addCriterion("created not between", value1, value2, "created");
            return (Criteria) this;
        }

        public Criteria andActivatedIsNull() {
            addCriterion("activated is null");
            return (Criteria) this;
        }

        public Criteria andActivatedIsNotNull() {
            addCriterion("activated is not null");
            return (Criteria) this;
        }

        public Criteria andActivatedEqualTo(Integer value) {
            addCriterion("activated =", value, "activated");
            return (Criteria) this;
        }

        public Criteria andActivatedNotEqualTo(Integer value) {
            addCriterion("activated <>", value, "activated");
            return (Criteria) this;
        }

        public Criteria andActivatedGreaterThan(Integer value) {
            addCriterion("activated >", value, "activated");
            return (Criteria) this;
        }

        public Criteria andActivatedGreaterThanOrEqualTo(Integer value) {
            addCriterion("activated >=", value, "activated");
            return (Criteria) this;
        }

        public Criteria andActivatedLessThan(Integer value) {
            addCriterion("activated <", value, "activated");
            return (Criteria) this;
        }

        public Criteria andActivatedLessThanOrEqualTo(Integer value) {
            addCriterion("activated <=", value, "activated");
            return (Criteria) this;
        }

        public Criteria andActivatedIn(List<Integer> values) {
            addCriterion("activated in", values, "activated");
            return (Criteria) this;
        }

        public Criteria andActivatedNotIn(List<Integer> values) {
            addCriterion("activated not in", values, "activated");
            return (Criteria) this;
        }

        public Criteria andActivatedBetween(Integer value1, Integer value2) {
            addCriterion("activated between", value1, value2, "activated");
            return (Criteria) this;
        }

        public Criteria andActivatedNotBetween(Integer value1, Integer value2) {
            addCriterion("activated not between", value1, value2, "activated");
            return (Criteria) this;
        }

        public Criteria andLoggedIsNull() {
            addCriterion("logged is null");
            return (Criteria) this;
        }

        public Criteria andLoggedIsNotNull() {
            addCriterion("logged is not null");
            return (Criteria) this;
        }

        public Criteria andLoggedEqualTo(Integer value) {
            addCriterion("logged =", value, "logged");
            return (Criteria) this;
        }

        public Criteria andLoggedNotEqualTo(Integer value) {
            addCriterion("logged <>", value, "logged");
            return (Criteria) this;
        }

        public Criteria andLoggedGreaterThan(Integer value) {
            addCriterion("logged >", value, "logged");
            return (Criteria) this;
        }

        public Criteria andLoggedGreaterThanOrEqualTo(Integer value) {
            addCriterion("logged >=", value, "logged");
            return (Criteria) this;
        }

        public Criteria andLoggedLessThan(Integer value) {
            addCriterion("logged <", value, "logged");
            return (Criteria) this;
        }

        public Criteria andLoggedLessThanOrEqualTo(Integer value) {
            addCriterion("logged <=", value, "logged");
            return (Criteria) this;
        }

        public Criteria andLoggedIn(List<Integer> values) {
            addCriterion("logged in", values, "logged");
            return (Criteria) this;
        }

        public Criteria andLoggedNotIn(List<Integer> values) {
            addCriterion("logged not in", values, "logged");
            return (Criteria) this;
        }

        public Criteria andLoggedBetween(Integer value1, Integer value2) {
            addCriterion("logged between", value1, value2, "logged");
            return (Criteria) this;
        }

        public Criteria andLoggedNotBetween(Integer value1, Integer value2) {
            addCriterion("logged not between", value1, value2, "logged");
            return (Criteria) this;
        }

        public Criteria andGroupNameIsNull() {
            addCriterion("group_name is null");
            return (Criteria) this;
        }

        public Criteria andGroupNameIsNotNull() {
            addCriterion("group_name is not null");
            return (Criteria) this;
        }

        public Criteria andGroupNameEqualTo(String value) {
            addCriterion("group_name =", value, "groupName");
            return (Criteria) this;
        }

        public Criteria andGroupNameNotEqualTo(String value) {
            addCriterion("group_name <>", value, "groupName");
            return (Criteria) this;
        }

        public Criteria andGroupNameGreaterThan(String value) {
            addCriterion("group_name >", value, "groupName");
            return (Criteria) this;
        }

        public Criteria andGroupNameGreaterThanOrEqualTo(String value) {
            addCriterion("group_name >=", value, "groupName");
            return (Criteria) this;
        }

        public Criteria andGroupNameLessThan(String value) {
            addCriterion("group_name <", value, "groupName");
            return (Criteria) this;
        }

        public Criteria andGroupNameLessThanOrEqualTo(String value) {
            addCriterion("group_name <=", value, "groupName");
            return (Criteria) this;
        }

        public Criteria andGroupNameLike(String value) {
            addCriterion("group_name like", value, "groupName");
            return (Criteria) this;
        }

        public Criteria andGroupNameNotLike(String value) {
            addCriterion("group_name not like", value, "groupName");
            return (Criteria) this;
        }

        public Criteria andGroupNameIn(List<String> values) {
            addCriterion("group_name in", values, "groupName");
            return (Criteria) this;
        }

        public Criteria andGroupNameNotIn(List<String> values) {
            addCriterion("group_name not in", values, "groupName");
            return (Criteria) this;
        }

        public Criteria andGroupNameBetween(String value1, String value2) {
            addCriterion("group_name between", value1, value2, "groupName");
            return (Criteria) this;
        }

        public Criteria andGroupNameNotBetween(String value1, String value2) {
            addCriterion("group_name not between", value1, value2, "groupName");
            return (Criteria) this;
        }
    }

    /**
     */
    public static class Criteria extends GeneratedCriteria {

        protected Criteria() {
            super();
        }
    }

    public static class Criterion {
        private String condition;

        private Object value;

        private Object secondValue;

        private boolean noValue;

        private boolean singleValue;

        private boolean betweenValue;

        private boolean listValue;

        private String typeHandler;

        public String getCondition() {
            return condition;
        }

        public Object getValue() {
            return value;
        }

        public Object getSecondValue() {
            return secondValue;
        }

        public boolean isNoValue() {
            return noValue;
        }

        public boolean isSingleValue() {
            return singleValue;
        }

        public boolean isBetweenValue() {
            return betweenValue;
        }

        public boolean isListValue() {
            return listValue;
        }

        public String getTypeHandler() {
            return typeHandler;
        }

        protected Criterion(String condition) {
            super();
            this.condition = condition;
            this.typeHandler = null;
            this.noValue = true;
        }

        protected Criterion(String condition, Object value, String typeHandler) {
            super();
            this.condition = condition;
            this.value = value;
            this.typeHandler = typeHandler;
            if (value instanceof List<?>) {
                this.listValue = true;
            } else {
                this.singleValue = true;
            }
        }

        protected Criterion(String condition, Object value) {
            this(condition, value, null);
        }

        protected Criterion(String condition, Object value, Object secondValue, String typeHandler) {
            super();
            this.condition = condition;
            this.value = value;
            this.secondValue = secondValue;
            this.typeHandler = typeHandler;
            this.betweenValue = true;
        }

        protected Criterion(String condition, Object value, Object secondValue) {
            this(condition, value, secondValue, null);
        }
    }
}

剩下得就是dao层得接口以及mapper得xml文件了，还有查出来得集合在页面上显示，这里就不写代码了