layui中table.render的使用
前端实现代码如图(完整代码):
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>数据表格</title> <meta name="renderer" content="webkit"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=0"> <link rel="stylesheet" href="../../layuiadmin/layui/css/layui.css" media="all"> <link rel="stylesheet" href="../../layuiadmin/style/admin.css" media="all"> </head> <body> <div class="layui-card layadmin-header"> <div class="layui-breadcrumb" lay-filter="breadcrumb"> <a lay-href="">主页</a> <a><cite>组件</cite></a> <a><cite>数据表格</cite></a> <a><cite>开启头部工具栏</cite></a> </div> </div> <div class="layui-fluid"> <div class="layui-row layui-col-space15"> <div class="layui-col-md12"> <div class="layui-card"> <div class="layui-card-header">开启头部工具栏</div> <div class="layui-card-body"> <table class="layui-hide" id="test-table-toolbar" lay-filter="test-table-toolbar"></table> <script type="text/html" id="test-table-toolbar-toolbarDemo"> <div class="layui-btn-container"> <button class="layui-btn layui-btn-sm" lay-event="getCheckData">获取选中行数据</button> <button class="layui-btn layui-btn-sm" lay-event="getCheckLength">获取选中数目</button> <button class="layui-btn layui-btn-sm" lay-event="isAll">验证是否全选</button> </div> </script> <script type="text/html" id="test-table-toolbar-barDemo"> <a class="layui-btn layui-btn-xs" lay-event="edit">编辑</a> <a class="layui-btn layui-btn-danger layui-btn-xs" lay-event="del">删除</a> </script> </div> </div> </div> </div> </div> <script src="../../layuiadmin/layui/layui.js"></script> <script> layui.config({ base: '../../layuiadmin/' //静态资源所在路径 }).extend({ index: 'lib/index' //主入口模块 }).use(['index', 'table'], function(){ var admin = layui.admin ,table = layui.table; table.render({ elem: '#test-table-toolbar' ,url:"http://localhost:8090/program-web/api/magic_change/oj/problem/page_list?userId=youcongtech" ,toolbar: '#test-table-toolbar-toolbarDemo' ,title: '程序设计题绑定' ,cols: [[ {type: 'checkbox', fixed: 'left'}, {field:'problemId', width:300, title: 'ID', sort: true} ,{field:'title', width:400, title: '题目'} ,{width:215, align:'center', fixed: 'right', toolbar: '#test-table-toolbar-barDemo'} ]] ,page: true }); //头工具栏事件 table.on('toolbar(test-table-toolbar)', function(obj){ var checkStatus = table.checkStatus(obj.config.id); switch(obj.event){ case 'getCheckData': var data = checkStatus.data; layer.alert(JSON.stringify(data)); break; case 'getCheckLength': var data = checkStatus.data; layer.msg('选中了：'+ data.length + ' 个'); break; case 'isAll': layer.msg(checkStatus.isAll ? '全选': '未全选'); break; }; }); //监听行工具事件 table.on('tool(test-table-toolbar)', function(obj){ var data = obj.data; if(obj.event === 'del'){ layer.confirm('真的删除行么', function(index){ obj.del(); layer.close(index); }); } else if(obj.event === 'edit'){ layer.prompt({ formType: 2 ,value: data.email }, function(value, index){ obj.update({ email: value }); layer.close(index); }); } }); }); </script> </body> </html>
核心js代码如下:
table.render({
elem: '#test-table-toolbar'
,url:"http://localhost:8090/program-web/api/magic_change/oj/problem/page_list?userId=youcongtech"
,toolbar: '#test-table-toolbar-toolbarDemo'
,title: '程序设计题绑定'
,cols: [[
{type: 'checkbox', fixed: 'left'},
{field:'problemId', width:300, title: 'ID', sort: true}
,{field:'title', width:400, title: '题目'}
,{width:215, align:'center', fixed: 'right', toolbar: '#test-table-toolbar-barDemo'}
]]
,page: true
});要求后台返回数据格式必须为:
{
"msg": "success",
"code": "0",
"data": [
{
"title": "for循环输出",
"problemId": 1139
},
{
"title": "测试2",
"problemId": 1138
},
{
"title": "测试1",
"problemId": 1137
},
{
"title": "for循环-Plus",
"problemId": 1140
},
{
"title": "第一个C++程序",
"problemId": 1141
}
]
}不然的话，会出现相关提示(如code对于的值必须为0，而不能为000000，以及data对应数据必须像上面这样的，不然cols里面不好自动对应上。
后台实现代码如下:
控制层代码(路由)
@GetMapping("/page_list")
@ApiOperation(value="根据用户ID获取题目分页列表",httpMethod="GET",notes="根据用户ID获取题目分页列表")
public JSONObject page_list(@RequestParam String userId, @RequestParam (value="page") String pageno, @RequestParam (value="limit") String pagesize) {
System.out.println("userId:"+userId+"|| pageno:"+pageno+"||pagesize:"+pagesize);
JSONObject json = new JSONObject();
//当前页
Integer page = Integer.parseInt(pageno.trim());
//每页的数量
Integer size = Integer.parseInt(pagesize.trim());
Map<String, Object> paramMap = new HashMap<>();
paramMap.put("userId", userId);
paramMap.put("start", (page - 1) * size); //当前页的数量
paramMap.put("size", size); //当前页
List<Problem> problemList = problemService.getProblemPageListInfo(paramMap);
int count =problemService.getProblemPageTotalCount(paramMap);
if(!problemList.isEmpty()) {
json.put("msg", "success");
json.put("code", "0");
json.put("data", problemList);
json.put("count", count);
}else {
json.put(CommonEnum.RETURN_MSG, "error");
json.put(CommonEnum.RETURN_CODE, "222222");
}
return json;
}Service及其实现类:
Service:
public interface ProblemService extends IService<Problem> {
List<Problem> getProblemPageListInfo(Map<String,Object> paramMap);
Integer getProblemPageTotalCount(Map<String,Object> paramMap);
}Service实现类:
@Service
public class ProblemServiceImpl extends ServiceImpl<ProblemDao, Problem> implements ProblemService {
@Autowired
private ProblemDao problemDao;
@Override
public List<Problem> getProblemPageListInfo(Map<String, Object> paramMap) {
return problemDao.getProblemPageListInfo(paramMap);
}
@Override
public Integer getProblemPageTotalCount(Map<String, Object> paramMap) {
return problemDao.getProblemPageTotalCount(paramMap);
}
}ProblemDao.xml:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.test.sass.mapper.ProblemDao">
<!-- 通用查询映射结果 -->
<resultMap id="BaseResultMap" type="com.test.sass.entity.Problem">
<id column="problem_id" property="problemId" />
<result column="title" property="title" />
<result column="description" property="description" />
<result column="input" property="input" />
<result column="output" property="output" />
<result column="sample_input" property="sampleInput" />
<result column="sample_output" property="sampleOutput" />
<result column="spj" property="spj" />
<result column="hint" property="hint" />
<result column="source" property="source" />
<result column="in_date" property="inDate" />
<result column="time_limit" property="timeLimit" />
<result column="memory_limit" property="memoryLimit" />
<result column="defunct" property="defunct" />
<result column="accepted" property="accepted" />
<result column="submit" property="submit" />
<result column="solved" property="solved" />
<result column="p_ladder_level" property="pLadderLevel" />
<result column="p_ladder_type" property="pLadderType" />
</resultMap>
<!-- 通用查询结果列 -->
<sql id="Base_Column_List">
problem_id AS problemId, title, description, input, output, sample_input AS
sampleInput, sample_output AS sampleOutput, spj, hint, source, in_date
AS inDate, time_limit AS timeLimit, memory_limit AS memoryLimit,
defunct, accepted, submit, solved
</sql>
<select id="getProblemPageListInfo" resultMap="BaseResultMap">
SELECT DISTINCT problem.problem_id,problem.title FROM privilege AS p LEFT JOIN
problem ON( REPLACE(p.rightstr,'p','') = problem.problem_id) WHERE
p.user_id =#{userId} AND problem.problem_id !=0 AND p.rightstr !=
'problem_editor' AND p.rightstr != 'contenst_creator' limit #{start},#{size}
</select>
<select id="getProblemPageTotalCount" resultType="Integer">
SELECT COUNT(DISTINCT problem.problem_id) FROM privilege AS p LEFT JOIN
problem ON( REPLACE(p.rightstr,'p','') = problem.problem_id) WHERE
p.user_id =#{userId} AND problem.problem_id !=0 AND p.rightstr !=
'problem_editor' AND p.rightstr != 'contenst_creator'
</select>
</mapper>实体类:
public class Problem extends Model<Problem> {
private static final long serialVersionUID = 1L;
@TableId(value = "problem_id", type = IdType.AUTO)
private Integer problemId;
private String title;
private String description;
private String input;
private String output;
@TableField("sample_input")
private String sampleInput;
@TableField("sample_output")
private String sampleOutput;
private String spj;
private String hint;
private String source;
@TableField("in_date")
private String inDate;
@TableField("time_limit")
private String timeLimit;
@TableField("memory_limit")
private String memoryLimit;
private String defunct;
private Integer accepted;
private Integer submit;
private Integer solved;
@TableField(exist=false)
private String pLadderLevel;
@TableField(exist=false)
private String pLadderType;
public Integer getProblemId() {
return problemId;
}
public void setProblemId(Integer problemId) {
this.problemId = problemId;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public String getInput() {
return input;
}
public void setInput(String input) {
this.input = input;
}
public String getOutput() {
return output;
}
public void setOutput(String output) {
this.output = output;
}
public String getSampleInput() {
return sampleInput;
}
public void setSampleInput(String sampleInput) {
this.sampleInput = sampleInput;
}
public String getSampleOutput() {
return sampleOutput;
}
public void setSampleOutput(String sampleOutput) {
this.sampleOutput = sampleOutput;
}
public String getSpj() {
return spj;
}
public void setSpj(String spj) {
this.spj = spj;
}
public String getHint() {
return hint;
}
public void setHint(String hint) {
this.hint = hint;
}
public String getSource() {
return source;
}
public void setSource(String source) {
this.source = source;
}
public String getInDate() {
return inDate;
}
public void setInDate(String inDate) {
this.inDate = inDate;
}
public String getTimeLimit() {
return timeLimit;
}
public void setTimeLimit(String timeLimit) {
this.timeLimit = timeLimit;
}
public String getMemoryLimit() {
return memoryLimit;
}
public void setMemoryLimit(String memoryLimit) {
this.memoryLimit = memoryLimit;
}
public String getDefunct() {
return defunct;
}
public void setDefunct(String defunct) {
this.defunct = defunct;
}
public Integer getAccepted() {
return accepted;
}
public void setAccepted(Integer accepted) {
this.accepted = accepted;
}
public Integer getSubmit() {
return submit;
}
public void setSubmit(Integer submit) {
this.submit = submit;
}
public Integer getSolved() {
return solved;
}
public void setSolved(Integer solved) {
this.solved = solved;
}
public String getpLadderLevel() {
return pLadderLevel;
}
public void setpLadderLevel(String pLadderLevel) {
this.pLadderLevel = pLadderLevel;
}
public String getpLadderType() {
return pLadderType;
}
public void setpLadderType(String pLadderType) {
this.pLadderType = pLadderType;
}
@Override
protected Serializable pkVal() {
return this.problemId;
}
@Override
public String toString() {
return "Problem [problemId=" + problemId + ", title=" + title + ", description=" + description + ", input="
+ input + ", output=" + output + ", sampleInput=" + sampleInput + ", sampleOutput=" + sampleOutput
+ ", spj=" + spj + ", hint=" + hint + ", source=" + source + ", inDate=" + inDate + ", timeLimit="
+ timeLimit + ", memoryLimit=" + memoryLimit + ", defunct=" + defunct + ", accepted=" + accepted
+ ", submit=" + submit + ", solved=" + solved + ", pLadderLevel=" + pLadderLevel + ", pLadderType="
+ pLadderType + "]";
}
}效果如下：
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