本文實例為大家分享了java如何接收ios文件上傳的具體代碼，供大家參考，具體內容如下
ios multipart/form-data post請求java后臺spring接口一直出錯，搞了兩天，終于解決了，積累下來
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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);// 判斷是否是表單文件類型 diskfileitemfactory factory = new diskfileitemfactory(); servletfileupload sfu = new servletfileupload(factory); list items = sfu.parserequest(request);// 從request得到所有上傳域的列表 for (iterator iter = items.iterator(); iter.hasnext();) { fileitem fileitem = (fileitem) iter.next(); if (!fileitem.isformfield() && fileitem != null) {// 判讀不是普通表單域即是file // 操作fileitem文件步驟，可以獲取大小、路徑 // 定義圖片輸出路徑 string imgpath = "e:" + system.currenttimemillis() + ".jpg"; // 定義圖片流 inputstream fin = fileitem.getinputstream(); // 定義圖片輸出流 fileoutputstream fout = new fileoutputstream(imgpath); // 寫文件 byte[] b = new byte[1024]; int length = 0; while ((length = fin.read(b)) > 0) { fout.write(b, 0, length); } // 關閉數據流 fin.close(); fout.close(); } } return "200"; }} |
pom.xml 添加
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<!-- 這個用于上傳文件工具操作 --> <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
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<!-- 配置文件上傳，如果沒有使用文件上傳可以不用配置，當然如果不配，那么配置文件 中也不必引入上傳組件包 --> <bean id="multipartresolver " class="org.springframework.web.multipart.commons.commonsmultipartresolver"> <!-- 默認編碼 --> <property name="defaultencoding" value="utf-8" /> <!-- 文件大小最大值 --> <property name="maxuploadsize" value="10485760000" /> <!-- 內存中的最大值 --> <property name="maxinmemorysize" value="40960" /> </bean> |
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持服務器之家。
原文鏈接：https://blog.csdn.net/u013939884/article/details/55103919
