antd form实现表单数据回显的方法

//index页面
import React from 'react'
import { Table, Button, message, Input, Select, Modal, } from 'antd';
const Option = Select.Option;
import AddOrEdit from './AddOrEdit '
class List extends React.Component {
 constructor(props) {
 super(props);
 }
 state = {
 id: "",
 selectOpt: {
  getPopupContainer: () => {
  return this.refs.myForm
  }
 },
 tableOption: {
  //表头
  columns: [
  { title: '员工姓名', key: 'workerName', dataIndex: 'workerName' },
  { title: '员工工号', key: 'workNumber', dataIndex: 'workNumber' },
  {
   title: "操作", key: 'action', className: 'columnsCenter', render: (text, record) => {
   return (
    <a title="编辑" type="edit" onClick={this.addOrEditClick.bind(this, record)}>编辑</a>
   )
   }
  }
  ],
  dataSource: [], //表格总数据
  loading: false,
  scroll: { x: 1600 },
  //分页初始数据
  pagination: {
  current: 1, pageSize: 10, total: 0, showTotal: total => `共 ${total} 条`
  }
 },
 //编辑表单详细信息
 dataForm: {
  data: [],
  model: {
  id: { value: undefined },
  workerName: { value: undefined },//员工姓名
  workNumber: { value: undefined }//员工工号
  },
  param: {}
 },
 //form表单模块
 modalOption: {
  title: "新增/修改",
  visible: false,
  footer: null,
  destroyOnClose: true,
  width: 900
 },
 }
 //编辑数据回显
 addOrEditClick(record) {
 const self = this;
 let { modalOption, dataForm } = this.state;
 dataForm.param = JSON.parse(JSON.stringify(dataForm.model));
 //如果是编辑弹出表单并且数据回显，否则就是新增
 if (record.id) {
  api.get(APIS.yluAssessTarget + record.id).then(function (response) {
  const data = response.data.data;
  dataForm.param.id.value = data.id;
  //给
  dataForm.param.workerName.value = data.workerName;
  dataForm.param.workNumber.value = data.workNumber;
  modalOption.visible = true;
  self.setState({ modalOption, dataForm });
  });
 } else {
  modalOption.visible = true;
  self.setState({ modalOption });
 }
 }
 //分页
 onTableChange(pagination, filters, sorte) {
 if (pagination.current) {
  let { tableOption, searchObj } = this.state;
  tableOption.pagination.current = pagination.current;
  tableOption.pagination.pageSize = pagination.pageSize;
  this.setState({ tableOption });
 }
 this.loadTable();
 };
 /**
 * 初始化列表
 */
 loadTable() {
 let self = this, { tableOption } = this.state;
 tableOption.loading = true;
 self.setState({ tableOption });
 api.post(APIS.yluAssessTargetSearch + '&#63;current=' + tableOption.pagination.current + '&pageSize=' + tableOption.pagination.pageSize, {
  data: {
  companyName: "查询参数"//分公司名
  }
 }).then(function (response) {
  tableOption.dataSource = response.data.data.
  tableOption.pagination.total = response.data.data.total;
 }).finally(() => {
  tableOption.loading = false;
  self.setState({ tableOption, notDataLevelGroup, searchObj });
 });
 }
 render() {
 const self = this;
 let { tableOption, modalOption, dataForm } = this.state;
 return (
  <div>
  <Button size="small" type="primary" onClick={this.addOrEditClick.bind(this, 0)} >新增</Button>
  <Table {...tableOption} bordered onChange={this.onTableChange.bind(this)} />
  <Modal {...modalOption} >
   {modalOption.visible &#63; <AddOrEdit {...dataForm} /> : null}
  </Modal>
  </div>

 )
 }
 componentDidMount() {
 this.loadTable();
 }
}

//form表单页,点击编辑或新增的时候会弹出，并且编辑的时候下拉框value值就为表格当前的这一条数据对应的值
//对select里面的value值用getFieldDecorator进行绑定
import React from 'react'
import { Table, Button, Select, Form, message, Row, Col, } from 'antd';
const Option = Select.Option;
class AddOrEdit extends React.Component {
 //提交保存
 handleSubmit(e) {
 e.preventDefault();
 const self = this;
 this.props.form.validateFieldsAndScroll((err, values) => {
  if (!err) {
  //提交保存
  api.post(APIS.yluAssessTarget, {
   data: {
   ...values,
   }
  }).then(res => {
   message.success(res.data.message)
  }).finally(() => {
   self.setState({ addOrEditFooterLoading: false })
  })
  }
 });
 }
 render() {
 const { workerNameList, workNumberList} = this.state;
 const { getFieldDecorator } = this.props.form;
 const reqMeg = '不能为空';
 const renderOption = (arr, code, name) => arr ? arr.map((item, index) => {
  return (<Option key={index + item[code]} value={typeof (item[code]) === 'number' &#63; item[code].toString() : item[code]}>{item[name]}</Option>)
 }) : null

 return (
  <Form styleName="form_box" onSubmit={this.handleSubmit.bind(this)} >
  <Col {...span24}>
   <FormItem label="员工姓名" {...formItemLayout} hasFeedback>
   {getFieldDecorator('workerName', {
    rules: [{ required: true, message: reqMeg }]
   })(<Select
    placeholder="请选择"
   >
    {renderOption(workerNameList, 'workCode', 'name')}
   </Select>)}
   </FormItem>
  </Col>
  <Col {...span24}>
   <FormItem label="员工工号" {...formItemLayout} hasFeedback>
   {getFieldDecorator('workNumber', {
    rules: [{ required: true, message: reqMeg }]
   })(<Select
    placeholder="请选择"
   >
    {renderOption(workNumberList, 'workNumber', 'name')}
   </Select>)}
   </FormItem>
  </Col>
  </Form>
 )
 }
}
export default AddOrEdit;

<a-form :form="form"> 
 <a-form-item label="名称" > 
 <a-input v-decorator="['name', {rules: [{required: true, message: '请输入名称！'}]}]" /> 
 </a-form-item>
 <a-form-item> 
 <a-upload 
 :multiple="true" 
 :fileList="downloadFiles" 
 :remove="handleDownloadFileRemove" 
 :customRequest="downloadFilesCustomRequest" 
 > 
 <a-button class="upload-btn"> <a-icon type="upload" > 相关下载 </a-button> 
 </a-upload> 
 </a-form-item>
</a-form>

const dibootApi = {
 get (url, params) { 
 return axios.get(url, { 
 params 
 }) 
 }, 
 upload(url, formData) { 
 return service({ 
 url, 
 method: 'POST', 
 data: formData 
 }) 
 }
}
export default dibootApi

export default {
 name: 'demoForm',
 data () {
 title: '新建',    // 该表单的功能标题
 form: this.$form.createForm(this), // 表单数据初始化，没什么好说的
 model: {},    // 如果是更新表单，之前的数据放到这里，来做数据初始化显示之用
 downloadFiles: []    // 已经上传的文件列表
 },
 methods: {
 // 初始打开的表单时的处理（如果是更新表单，这里首先需要读取出相关数据）
 async open (id) { 
  if (id === undefined) { 
  // 没有id数据则认为是新建 
  this.model = {} 
  this.afterOpen() 
  } else { 
  // 否则作为更新处理 
  const res = await dibootApi.get(`/${this.name}/${id}`) 
  if (res.code === 0) { 
  this.model = res.data 
  this.title = '编辑' 
  this.afterOpen(id) 
  } else { 
  this.$notification.error({ 
   message: '获取数据失败', 
   description: res.msg 
  }) 
  } 
  } 
 },
 // 更新表单在读取数据完成后的操作
 afterOpen (id) { 
  // 获取该记录信息后，回显文件列表相关操作
  dibootApi.post(`/demo/getFiles/${id}`).then(res => { 
  if (res.code === 0){ 
   if (res.data.downloadFile !== undefined){ 
   res.data.downloadFile.forEach(data => { 
    this.downloadFiles.push(this.fileFormatter(data)) 
   }) 
   }
  } 
  }) 
 },
 // 重写a-upload的文件上传处理方式
 downloadFilesCustomRequest (data) { 
  this.saveFile(data) 
 }, 
 // 上传并保存文件
 saveFile (data){ 
  const formData = new FormData() 
  formData.append('file', data.file) 
  dibootApi.upload('/demo/upload', formData).then((res) => { 
  if (res.code === 0){ 
   let file = this.fileFormatter(res.data) 
   // 上传单个文件后，将该文件会先到a-upload组件的已上传文件列表中的操作
   this.downloadFiles.push(file) 
  } else { 
   this.$message.error(res.msg) 
  } 
  }) 
 },
 // 对上传成功返回的数据进行格式化处理，格式化a-upload能显示在已上传列表中的格式（这个格式官方文档有给出的）
 fileFormatter(data) { 
  let file = { 
  uid: data.uuid, // 文件唯一标识，建议设置为负数，防止和内部产生的 id 冲突 
  name: data.name, // 文件名 
  status: 'done', // 状态有：uploading done error removed 
  response: '{"status": "success"}', // 服务端响应内容 
  } 
  return file 
 },
 // 没错，删除某个已上传的文件的时候，就是调用的这里
 handleDownloadFileRemove (file) { 
  const index = this.downloadFiles.indexOf(file) 
  const newFileList = this.downloadFiles.slice() 
  newFileList.splice(index, 1) 
  this.downloadFiles = newFileList 
 },
 // 表单校验就靠他了，不过这里面还是可以对需要提交的一些数据做些手脚的
 validate () { 
  return new Promise((resolve, reject) => { 
  this.form.validateFields((err, fieldsValue) => { 
   if (!err) { 
   // 设置上传文件列表 
   const downloadFiles = this.downloadFiles.map(o => { 
    return o.uid 
   }) 
   const values = { 
    ...fieldsValue, 
    'downloadFiles': downloadFiles
   } 
   resolve(values) 
   } else { 
   reject(err) 
   }
  }) 
  }) 
 },
 // 表单提交的相关操作
 async onSubmit () { 
  const values = await this.validate() 
  try { 
  let result = {} 
  if (this.model.id === undefined) { 
   // 新增该记录 
   result = await this.add(values) 
  } else { 
   // 更新该记录 
   values['id'] = this.model.id 
   result = await this.update(values) 
  } 

  // 执行提交成功的一系列后续操作 
  this.submitSuccess(result) 
  } catch (e) { 
  // 执行提交失败的一系列后续操作 
  this.submitFailed(e) 
  } 
 },
 // 新增数据的操作
 async add (values) {
  ....
 },
 // 更新数据的操作
 async update (values) {
  ...
 }
 }
}

/*** 
 * 获取文件信息列表 
 * @param id 
 * @return 
 * @throws Exception 
 */
@PostMapping("/getFiles/{id}") 
public JsonResult getFilesMap(@PathVariable("id") Serializable id) throws Exception{ 
 List<File> files = fileService.getEntityList( 
  Wrappers.<File>lambdaQuery() 
   .eq(File::getRelObjType, Demo.class.getSimpleName()) 
   .eq(File::getRelObjId, id) 
 ); 
 return new JsonResult(Status.OK, files); 
}

/*** 
 * 上传文件 
 * @param file 
 * @param request 
 * @return 
 * @throws Exception 
 */
@PostMapping("/upload") 
public JsonResult upload(@RequestParam("file") MultipartFile file) throws Exception { 
 File fileEntity = demoService.uploadFile(file); 
 return new JsonResult(Status.OK, fileEntity, "上传文件成功"); 
}

/***
* 创建成功后的相关处理
* @param entity
* @return
*/
@Override
protected String afterCreated(BaseEntity entity) throws Exception {
 DemoDTO demoDTO = (DemoDTO) entity;
 // 更新文件关联信息
 demoService.updateFiles(new ArrayList<String>(){{
 addAll(demoDTO.getDownloadFiles());
 }}, demoDTO.getId(), true);
 return null;
}

/***
* 更新成功后的相关处理
* @param entity
* @return
*/
@Override
protected String afterUpdated(BaseEntity entity) throws Exception {
 DemoDTO demoDTO = (DemoDTO) entity;
 // 更新文件关联信息
 demoService.updateFiles(new ArrayList<String>(){{
 addAll(demoDTO.getDownloadFiles());
 }}, demoDTO.getId(), false);
 return null;
}

@Override 
public File uploadFile(MultipartFile file) { 
 if(V.isEmpty(file)){ 
 throw new BusinessException(Status.FAIL_OPERATION, "请上传图片"); 
 } 
 String fileName = file.getOriginalFilename(); 
 String ext = fileName.substring(fileName.lastIndexOf(".")+1); 
 String newFileName = S.newUuid() + "." + ext; 
 //TODO: 需要对合法的文件类型进行验证 
 if(FileHelper.isImage(ext)){ 
 throw new BusinessException(Status.FAIL_OPERATION, "请上传合法的文件类型"); 
 }; 
 
 // 说明：此处为我们的处理流程，看官们需要根据自己的需求来对文件进行保存及处理（之后我们的File组件开源之后也可以按照此处的处理）
 String filePath = FileHelper.saveFile(file, newFileName); 
 if(V.isEmpty(filePath)){ 
 throw new BusinessException(Status.FAIL_OPERATION, "图片上传失败"); 
 } 
 
 File fileEntity = new File(); 
 fileEntity.setRelObjType(Demo.class.getSimpleName()); 
 fileEntity.setFileType(ext); 
 fileEntity.setName(fileName); 
 fileEntity.setPath(filePath); 
 String link = "/file/download/" + D.getYearMonth() + "_" + newFileName; 
 fileEntity.setLink(link); 
 
 boolean success = fileService.createEntity(fileEntity); 
 if (!success){ 
 throw new BusinessException(Status.FAIL_OPERATION, "上传文件失败"); 
 } 
 return fileEntity; 
} 
 
@Override 
public void updateFiles(List<String> uuids, Long currentId, boolean isCreate) { 
 // 如果不是创建，需要删除不在列表中的file记录 
 if (!isCreate){ 
 fileService.deleteEntities(Wrappers.<File>lambdaQuery().notIn(File::getUuid, uuids)); 
 } 
 // 进行相关更新 
 boolean success = fileService.updateEntity( 
  Wrappers.<File>lambdaUpdate() 
   .in(File::getUuid, uuids) 
   .set(File::getRelObjType, Demo.class.getSimpleName()) 
   .set(File::getRelObjId, currentId)); 
 if (!success){ 
 throw new BusinessException(Status.FAIL_OPERATION, "更新文件信息失败"); 
 } 
}