创建人
问题标题	异常错误
问题分类	运行出错
一级话题	Type Exception Report Message F:\idearProjects\javaweb\out\artifacts\day_15_responce_war_exploded\火影.jpg (系统找不到指定的文件。) Description The server encountered an unexpected condition that prevented it from fulfilling the request. Exception java.io.FileNotFoundException: F:\idearProjects\javaweb\out\artifacts\day_15_responce_war_exploded\火影.jpg (系统找不到指定的文件。)         java.base/java.io.FileInputStream.open0(Native Method)         java.base/java.io.FileInputStream.open(FileInputStream.java:196)         java.base/java.io.FileInputStream.<init>(FileInputStream.java:139)         java.base/java.io.FileInputStream.<init>(FileInputStream.java:94)         cn.it.down.DownloadServlet.doPost(DownloadServlet.java:28)         cn.it.down.DownloadServlet.doGet(DownloadServlet.java:54)         javax.servlet.http.HttpServlet.service(HttpServlet.java:635)         javax.servlet.http.HttpServlet.service(HttpServlet.java:742)         org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
问题补充	路径异常,找不到链接的图片的主要路径,获得真实路径的时候出错,无法找到图片位置
附件	String filename = req.getParameter("filename"); // System.out.println(filename); //获得域对象 ServletContext servletContext = this.getServletContext(); //找到那个图片链接的真实路径 String realPath = servletContext.getRealPath(  filename); //利用字节流将图片加载进内存 FileInputStream fis = new FileInputStream(realPath); //获取文件的类型 String mimeType = servletContext.getMimeType(filename);
问题答案	真实路径不对外面还有一个文件夹
	String filename = req.getParameter("filename"); // System.out.println(filename); //获得域对象 ServletContext servletContext = this.getServletContext(); //找到那个图片链接的真实路径 String realPath = servletContext.getRealPath("/img/" + filename); //利用字节流将图片加载进内存 FileInputStream fis = new FileInputStream(realPath); //获取文件的类型 String mimeType = servletContext.getMimeType(filename);

创建人
问题标题	异常错误
问题分类	运行出错
一级话题	Type Exception Report Message F:\idearProjects\javaweb\out\artifacts\day_15_responce_war_exploded\火影.jpg (系统找不到指定的文件。) Description The server encountered an unexpected condition that prevented it from fulfilling the request. Exception java.io.FileNotFoundException: F:\idearProjects\javaweb\out\artifacts\day_15_responce_war_exploded\火影.jpg (系统找不到指定的文件。)         java.base/java.io.FileInputStream.open0(Native Method)         java.base/java.io.FileInputStream.open(FileInputStream.java:196)         java.base/java.io.FileInputStream.<init>(FileInputStream.java:139)         java.base/java.io.FileInputStream.<init>(FileInputStream.java:94)         cn.it.down.DownloadServlet.doPost(DownloadServlet.java:28)         cn.it.down.DownloadServlet.doGet(DownloadServlet.java:54)         javax.servlet.http.HttpServlet.service(HttpServlet.java:635)         javax.servlet.http.HttpServlet.service(HttpServlet.java:742)         org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
问题补充	路径异常,找不到链接的图片的主要路径,获得真实路径的时候出错,无法找到图片位置
附件	String filename = req.getParameter("filename"); // System.out.println(filename); //获得域对象 ServletContext servletContext = this.getServletContext(); //找到那个图片链接的真实路径 String realPath = servletContext.getRealPath(  filename); //利用字节流将图片加载进内存 FileInputStream fis = new FileInputStream(realPath); //获取文件的类型 String mimeType = servletContext.getMimeType(filename);
问题答案	真实路径不对外面还有一个文件夹
	String filename = req.getParameter("filename"); // System.out.println(filename); //获得域对象 ServletContext servletContext = this.getServletContext(); //找到那个图片链接的真实路径 String realPath = servletContext.getRealPath("/img/" + filename); //利用字节流将图片加载进内存 FileInputStream fis = new FileInputStream(realPath); //获取文件的类型 String mimeType = servletContext.getMimeType(filename);