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java接收ios文件上传的示例代码

2024-07-14 08:41:00
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本文实例为大家分享了java如何接收ios文件上传的具体代码,供大家参考,具体内容如下

ios Multipart/form-data POST请求java后台spring接口一直出错,搞了两天,终于解决了,积累下来

package com.xx.controller;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.util.Iterator;import java.util.LinkedList;import java.util.List;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.apache.commons.fileupload.FileItem;import org.apache.commons.fileupload.FileUploadException;import org.apache.commons.fileupload.disk.DiskFileItemFactory;import org.apache.commons.fileupload.servlet.ServletFileUpload;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.ResponseBody;import com.nupaApp.model.FileMeta;@Controller@RequestMapping("/controller")public class File1Controller { LinkedList<FileMeta> files = new LinkedList<FileMeta>(); FileMeta fileMeta = null; /***************************************************  * URL: /rest/controller/upload upload(): receives files  *   * @param request  *   : MultipartHttpServletRequest auto passed  * @param response  *   : HttpServletResponse auto passed  * @return LinkedList<FileMeta> as json format  * @throws IOException  * @throws FileUploadException  ****************************************************/ @RequestMapping(value = "/upload", method = RequestMethod.POST) @ResponseBody public String upload(HttpServletRequest request, HttpServletResponse response)   throws IOException, FileUploadException {  boolean isMultipart = ServletFileUpload.isMultipartContent(request);// 判断是否是表单文件类型  DiskFileItemFactory factory = new DiskFileItemFactory();  ServletFileUpload sfu = new ServletFileUpload(factory);  List items = sfu.parseRequest(request);// 从request得到所有上传域的列表  for (Iterator iter = items.iterator(); iter.hasNext();) {   FileItem fileitem = (FileItem) iter.next();   if (!fileitem.isFormField() && fileitem != null) {// 判读不是普通表单域即是file                // 操作fileitem文件步骤,可以获取大小、路径    // 定义图片输出路径    String imgPath = "e:" + System.currentTimeMillis() + ".jpg";    // 定义图片流    InputStream fin = fileitem.getInputStream();    // 定义图片输出流    FileOutputStream fout = new FileOutputStream(imgPath);    // 写文件    byte[] b = new byte[1024];    int length = 0;    while ((length = fin.read(b)) > 0) {     fout.write(b, 0, length);    }    // 关闭数据流    fin.close();    fout.close();   }  }  return "200"; }}

pom.xml 添加

<!-- 这个用于上传文件工具操作 -->  <dependency>   <groupId>commons-fileupload</groupId>   <artifactId>commons-fileupload</artifactId>   <version>1.3.1</version>  </dependency>  <dependency>   <groupId>commons-io</groupId>   <artifactId>commons-io</artifactId>   <version>2.4</version>  </dependency>

spring-config.xml 添加bean

<!-- 配置文件上传,如果没有使用文件上传可以不用配置,当然如果不配,那么配置文件 中也不必引入上传组件包 --> <bean id="multipartResolver "  class="org.springframework.web.multipart.commons.CommonsMultipartResolver">  <!-- 默认编码 -->  <property name="defaultEncoding" value="utf-8" />  <!-- 文件大小最大值 -->  <property name="maxUploadSize" value="10485760000" />  <!-- 内存中的最大值 -->  <property name="maxInMemorySize" value="40960" /> </bean>

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