java读取本地图片_JAVA_编程开发_程序员俱乐部

class="java">
public void showPicture(){
		String id = ServletActionContext.getRequest().getParameter("id");//前台传来的存图片路径实体类的主键id
		HttpServletResponse response = ServletActionContext.getResponse();//struts2获取response
		if(id != null && !"".equals(id)){
			this.classicCases = this.classicCasesManager.findClassicCasesById(id);
			String pic_path = this.classicCases.getImagesLocalPath();//图片路径
			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); // 读数据
				is.close();
				response.setContentType("image/*"); // 设置返回的文件类型
				OutputStream toClient = response.getOutputStream(); // 得到向客户端输出二进制数据的对象
				toClient.write(data); // 输出数据
				toClient.close();
			} catch (FileNotFoundException e) {
				e.printStackTrace();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
	}

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