springmvc上传图片 SpringMVC上传图片与访问
201200834201 人气:0关于springmvc上传图片的方法小编给大家整理了两种方法,具体内容如下所示:
第一种:(放在该项目下的物理地址对应的位置)
a. 路径写法:
String basePath="/WEB-INF/resources/upload";
String filePathName= request.getSession().getServletContext().getRealPath(basePath);存放路径
b. 实际路径:
D:\WorkSpace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\XYT\WEB-INF\resources\upload\图片名称
c. 访问路径: http://localhost:8080/XYT/resources/upload/图片名称
d. 前提:只要这个项目能运行就行。
第二种:(创建虚拟路径,配置Tomcat下server.xml,创建存储路径和访问路径)
1.路径写法:
String filePathName=Constant.IMG_PATH+File.separator+"upload";
其中:public static final String IMG_PATH = "E:\\Java\\img";
2.路径配置:
Server.xml配置
<Host name="localhost" appBase="webapps" unpackWARs="true" autoDeploy="true"> <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs" prefix="localhost_access_log." suffix=".txt" pattern="%h %l %u %t "%r" %s %b" /> <!-- add(save pictures) --> <Context path="/upload" docBase="E:\Java\img\upload"></Context> </Host>
3.实际路径:E:\Java\img\upload
4.访问路径:http://localhost:8080/upload/图片名称
5.参考:http://my.oschina.net/pingdy/blog/381001
6.前提:必须打开Tomcat服务器
举例:上传图片的实例:(可以上传多张图片)
JSONObject rs=new JSONObject(); CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver( request.getSession().getServletContext()); String url=""; if (multipartResolver.isMultipart(request)) { MultipartHttpServletRequest multiRequest = (MultipartHttpServletRequest) request; Iterator<String> iter = multiRequest.getFileNames(); while (iter.hasNext()) { MultipartFile file = multiRequest.getFile((String) iter.next()); if (file != null) { String originalFileName = file.getOriginalFilename(); String[] f = originalFileName.split("\\."); String ext = ""; if(f!=null && f.length>1){ ext = f[f.length-1]; System.out.println(ext); } System.out.println(allowImgType==null); if(!allowImgType.contains(ext.toUpperCase())){ rs.put("code", "ERR_UPLOAD_0003"); rs.put("msg", "类型错误"); return rs; } //String basePath="/WEB-INF/resources/upload";//String filePathName = request.getSession().getServletContext().getRealPath(basePath); String filePathName=Constant.IMG_PATH+File.separator+"upload"; url = filePathName; System.out.println(url); //上传后记录在path这个路径下。 File localFile = new File(filePathName); if(!localFile.exists()){ localFile.mkdir(); } //compress String fname =new Date().getTime()+"."+ext; String originalFname = fname.substring(0,fname.indexOf("."))+"_original."+ext; String fileName = filePathName + File.separator + fname; String oFileName = filePathName + File.separator + originalFname; File infile = new File(fileName); File oFile = new File(oFileName); try{ ImageHelper.compress(file.getInputStream(), 600, infile); file.transferTo(oFile);//original 上传原图 JSONObject obj = new JSONObject(); rs.put("code", Constant.CODE_SUCCESS); rs.put("data", obj.toString()); }catch(Exception e){ rs.put("code", "ERR_UPLOAD_0001"); rs.put("msg", "ERR_UPLOAD_0001"); e.printStackTrace(); return rs; } }
以上所述是针对SpringMVC上传图片与访问的相关内容,希望对大家有所帮助。
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