JAVA讀取本地檔案並顯示到頁面中
阿新 • • 發佈：2019-01-22
javaweb圖片的顯示
@RequestMapping(value="showImg")
@ResponseBody
public void ShowImg(HttpServletRequest request,HttpServletResponse response) throws IOException{
//String imgFile = request.getParameter("imgFile"); //檔名
// String path= UrlUtil.getValue("goodsImg");//這裡是存放圖片的資料夾地址
String path = ConfigUtil.getValue("file_upload_url");
String imgFile = "無標題.png";
FileInputStream fileIs=null;
try {
fileIs = new FileInputStream(path+"/"+imgFile);
} catch (Exception e) {
Logger.error(this.getClass(), e);
return;
}
int i=fileIs.available(); //得到檔案大小
byte data[]=new byte[i];
fileIs.read(data); //讀資料
response.setContentType("image.png"); //設定返回的檔案型別
OutputStream outStream=response.getOutputStream(); //得到向客戶端輸出二進位制資料的物件
outStream.write(data); //輸出資料
outStream.flush();
outStream.close();
fileIs.close();
}
var src = address + "/basevalue/showImg";
$("#logo").attr("src",src);