java 通過流的方式讀取本地圖片並顯示在jsp 頁面上

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項目中Java代碼如下：

@RequestMapping("readImage")public void readImage(Model model, HttpServletRequest request, HttpServletResponse response) throws IOException{    String magazineId = request.getParameter("magazineId");    String sql = " SELECT save_path,save_name,extention FROM ta_horizon_info WHERE object_id = ‘" + magazineId + "‘ ";    Map<String, Object> map = Access.getSingleMap(sql, null);    String savePath = (String) map.get("save_path");    String saveName = (String) map.get("save_name");    String extention = (String) map.get("extention");    String filePath = savePath + "/" +saveName + "." + extention;    File filePic = new File(filePath);    if(filePic.exists()){       FileInputStream is = new FileInputStream(filePic);       int i = is.available(); // 得到檔案大小         byte data[] = new byte[i];         is.read(data); // 讀資料         is.close();         response.setContentType("image/*"); // 設定返回的檔案類型         OutputStream toClient = response.getOutputStream(); // 得到向用戶端輸出位元據的對象         toClient.write(data); // 輸出資料         toClient.close();      }}

jsp頁面代碼：

<img style="width:100%; height:490px" src="<%=request.getContextPath() %>/horizon/module/magazine/readImage.wf?magazineId=${magazine.id }">

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java 通過流的方式讀取本地圖片並顯示在jsp 頁面上