Home > Article > Web Front-end > How to use enumeration types to implement HTML drop-down boxes in Vue
This article introduces you step by step the relevant knowledge of Vue using enumeration types to implement HTML drop-down boxes. It is very good and has reference value. Friends in need can refer to the following
The drop-down box contains the Value in the option And the options used to display, generally the Value value is used in the background, rather than the options displayed in the foreground
Step 1: Write the enumeration type required for the drop-down box
StatusEnum.java
public enum StatusEnum { RED, YELLOW, GREEN }
Step 2: Write the Value and displayed options to store the corresponding options in the drop-down box
StatusDTO.java
public class StatusDTO { private String code; private String name; //setter , getter }
Step 3: Write the controller (resource)
statusResource.java
@Path("/status") public class statusResource{ @GET @Path("/getStatus") public List<StatusDTO> getStatus(){ List<StatusDTO> list = new ArrayList<StatusDTO>(); StatusDTO statusDTO = null; for(StatusEnum status : StatusEnum.values()){ statusDTO = new StatusDTO(); statusDTO.setCode(status.toString()); list.add(statusDTO); } return list; } }
Step 4: Write js file
var statusModel ={ selectStatus:[], //存放下拉框结果 status:''//存放选中结果 } var selectVue = new Vue({ el:'#selectStatus',// 绑定DOM,一般是绑定p data:statusModel //标签中使用的model }) var selectStatusResource = Vue.resource('/status/getStatus').get().then(function (response) { var statusList = response.data; var list = []; var status = null; for(var i = 0; i < statusList.length; i++){ status = statusList[i].code == 'RED' ? '红色' : statusList[i].code == 'YELLOW' ? '黄色' : statusList[i].code == 'GREEN' ? '绿色' : ''; list.push({code:statusList[i].code,name:status}); } statusModel.selectStatus = list; });
Step 5: Write html file
<p id="selectStatus" style="width:140px;height: 37px;text-align: right;margin: 0 2px;position: relative;float: left;"> <select id="status" style="width:100%;background: #ddebff;height: 35px;color: #082451; border: 1px solid #082451;border-radius: 2px;font-size: 12px; box-shadow: 3px 3px 3px #96c0e7 inset;" v-model="status"> <option value="-1">-请选择-</option> <option v-for="option in selectStatus" :value="option.code">{{option.name}}</option> </select> </p>
Display effect:
The above is what I compiled for everyone. I hope it will be helpful to everyone in the future.
Related articles:
How to make dynamic forms in angular
How to use child components to call parent components in ES6
How to use Eslint in Vue-cli to implement automatic formatting
The above is the detailed content of How to use enumeration types to implement HTML drop-down boxes in Vue. For more information, please follow other related articles on the PHP Chinese website!