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
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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";
}
}
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pom.xml 添加
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<!-- 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>
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spring-config.xml 添加bean
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<!-- 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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以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/u013939884/article/details/55103919