servlet笔记（五）响应头信息

最新推荐文章于 2021-02-28 23:10:02 发布

PrincessofUtopia

最新推荐文章于 2021-02-28 23:10:02 发布

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分类专栏： servlet 文章标签： servlet

本文链接：https://blog.youkuaiyun.com/niuchaoying/article/details/45694077

响应头信息：

协议，状态码，header......

setHeader设置响应头信息

设置内容类型，如word，excel，txt等等

1.构建excel电子表格

代码如下：

public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
			response.setContentType("application/vnd.ms-excel");
	    PrintWriter out = response.getWriter();
		  out.println("\tQ1\tQ2\tQ3\tQ4\tTotal");
		  out.println("Apples\t78\t87\t92\t29\t=SUM(B2:E2)");
		  out.println("Oranges\t77\t86\t93\t30\t=SUM(B3:E3)");
		
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
      doGet(request,response);
		  
	}

2.动态生成jpeg图片

代码内容如下：

          public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		  //响应动态图片
		  response.setContentType("image/jpeg