public void showPicture(){ 
    String id = ServletActionContext.getRequest().getParameter("id");//前臺傳來的存圖片路徑實體類的主鍵id 
    HttpServletResponse response = ServletActionContext.getResponse();//struts2獲取response 
    if(id != null && !"".equals(id)){ 
      this.classicCases = this.classicCasesManager.findClassicCasesById(id); 
      String pic_path = this.classicCases.getImagesLocalPath();//圖片路徑 
      FileInputStream is; 
      try { 
        is = new FileInputStream(pic_path); 
        int i = is.available(); // 得到文件大小 
        byte data[] = new byte[i]; 
        is.read(data); // 讀數(shù)據(jù) 
        is.close(); 
        response.setContentType("image/*"); // 設置返回的文件類型 
        OutputStream toClient = response.getOutputStream(); // 得到向客戶端輸出二進制數(shù)據(jù)的對象 
        toClient.write(data); // 輸出數(shù)據(jù) 
        toClient.close(); 
      } catch (FileNotFoundException e) { 
        e.printStackTrace(); 
      } catch (IOException e) { 
        e.printStackTrace(); 
      } 
    } 
  } 

<img alt="" id="images" src="<%=basePath %>ClassicCasesAction!showPicture.action?id=${classicCases.id}">