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111 lines
2.8 KiB
Markdown
111 lines
2.8 KiB
Markdown
# 文件上传
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请求接口时带上文件
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## 客户端调用
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```java
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DemoFileUploadRequest request = new DemoFileUploadRequest();
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DemoFileUploadModel model = new DemoFileUploadModel();
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model.setRemark("上传文件参数");
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request.setBizModel(model);
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List<UploadFile> files = new ArrayList<>();
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String root = System.getProperty("user.dir");
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System.out.println(root);
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// 这里演示将resources下的两个文件上传到服务器
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files.add(new UploadFile("file1", new File(root + "/src/main/resources/file1.txt")));
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files.add(new UploadFile("file2", new File(root + "/src/main/resources/file2.txt")));
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request.setFiles(files);
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DemoFileUploadResponse response = client.execute(request);
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System.out.println("--------------------");
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if (response.isSuccess()) {
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List<DemoFileUploadResponse.FileMeta> responseFiles = response.getFiles();
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System.out.println("您上传的文件信息：");
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responseFiles.stream().forEach(file->{
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System.out.println(file);
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});
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} else {
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System.out.println("errorCode:" + response.getCode() + ",errorMsg:" + response.getMsg());
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}
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System.out.println("--------------------");
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```
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客户端使用`UploadFile`添加上传文件
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```java
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/**
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* @param name 表单名称，不能重复
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* @param file 文件
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* @throws IOException
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*/
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public UploadFile(String name, File file) throws IOException {
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this(name, file.getName(), FileUtil.toBytes(file));
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}
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```
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其中`name`表示字段名称，相当于`<input type="file" name="file1"/>`中的name
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源码详见sop-sdk
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## 服务端接收文件
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- 方式1
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```java
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/**
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* 方式1：将文件写在参数中，可直接获取。好处是可以校验是否上传
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* @param param
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* @return
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*/
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@Open("file.upload")
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@RequestMapping("file1")
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public FileUploadVO file1(FileUploadParam param) {
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System.out.println(param.getRemark());
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// 获取上传的文件
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MultipartFile file1 = param.getFile1();
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MultipartFile file2 = param.getFile2();
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...
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return vo;
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}
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@Data
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public class FileUploadParam {
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private String remark;
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// 上传文件，字段名称对应表单中的name属性值
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@NotNull(message = "文件1不能为空")
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private MultipartFile file1;
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@NotNull(message = "文件2不能为空")
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private MultipartFile file2;
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}
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```
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方式1的好处是可以使用`JSR-303`校验文件是否上传
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- 方式2
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```java
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/**
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* 方式2：从request中获取上传文件
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*
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* @param param
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* @return
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*/
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@Open("file.upload2")
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@RequestMapping("file2")
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public FileUploadVO file2(FileUploadParam2 param, HttpServletRequest request) {
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System.out.println(param.getRemark());
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FileUploadVO vo = new FileUploadVO();
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// 获取上传的文件
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Collection<MultipartFile> uploadFiles = UploadUtil.getUploadFiles(request);
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...
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return vo;
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}
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```
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微服务端源码参考`FileUploadDemoController.java` |