Grails 高级查询并分页

最近写了一个简单的分页查询如下

输入用户名和密码查询

实现效果如图

queryList中的文件代码

def adminInstance=new Admin(params)

//如果没有输入内容则返回
        if(adminInstance.userName.trim()==”"&&adminInstance.userPass.trim()==”"){
            flash.message=”${message(code:’query.error’,default:’query error!!’)}”
            return 
        }else{

//创建queryList的查询对象
            def adminQueryList=Admin.createCriteria()
            params.max = params.max ? params.int(‘max’) : 5

//创建查询条件
            def queryResult=adminQueryList.list(max:params.max,offset:params.offset){
                like(“userName”,”%”+params.userName+”%”)
                or{
                    like(“userPass”,”%”+params.userPass+”%”)
                }

//根据id倒叙排列
                order(“id”,”desc”)
            }
            def adminQuerySize=Admin.createCriteria()
            def queryResultSize=adminQuerySize{
                like(“userName”,”%”+params.userName.trim()+”%”)
                or{
                    like(“userPass”,”%”+params.userPass.trim()+”%”)
                }
                projections{ rowCount() }
            }
                   render(view:”queryList”,model:[adminInstances: queryResult,queryResultSize:queryResultSize[0],params:params])}

gsp中的分页为

<div class=”list”>
                <g:each in=”${adminInstances}” status=”i” var=”adminInstance”>
                    <tr class=”${(i % 2) == 0 ? ‘odd’ : ‘even’}”>

                        <td><g:link action=”show” id=”${adminInstance.id}”>
                                ${fieldValue(bean: adminInstance, field: “id”)}
                            </g:link></td>

                        <td>
                            ${fieldValue(bean: adminInstance, field: “userName”)}
                        </td>

                        <td>
                            ${fieldValue(bean: adminInstance, field: “userPass”)}
                        </td>
                        <td width=”140px”><g:link action=”show”
                                id=”${adminInstance.id}”>查看œ‹</g:link> | <g:link action=”edit”
                                id=”${adminInstance.id}”>编辑</g:link> | 
                                <g:link    url=”delete?id=${adminInstance.id}” onclick=”return confirm(‘您确定删除吗？Ÿ’)” >删除</g:link>
                        </td>
                    </tr>
                </g:each>
    </div>
    <div class=”paginateButtons” style=”width: 100%”>
        <div style=”float: left; width: 300px”>
        <g:paginate total=”${queryResultSize}” params=”${params}” ></g:paginate>
        </div>
        <div style=”float: right; width: 200px;”>
            
        </div>
    </div>
</div>