我的JSP返回202(SC_ACCEPTED)状态,但调用者获得200(SC_OK)状态

时间:2017-06-05 08:28:09

标签: java jsp http tomcat http-response-codes

我在Tomcat上访问一个简单的JSP页面:

<%@ page import = "java.io.Writer" %>
<%
try {
    Writer outWriter = response.getWriter ();
    outWriter.write ("something");
    outWriter.flush ();
    response.setStatus (HttpServletResponse.SC_ACCEPTED);
}
catch (Throwable t) {
  response.sendError (HttpServletResponse.SC_BAD_REQUEST, t.getMessage ());
}%>

但是当我用curl测试此页面时,我得到的是200响应代码,而不是预期的202:

$ curl -i "http://localhost:8090/somepath/somefile.jsp"
HTTP/1.1 200 OK
Server: Apache-Coyote/1.1
Set-Cookie: JSESSIONID=52......................AD2; Path=/somepath/; HttpOnly
Content-Type: text/html;charset=ISO-8859-1
Transfer-Encoding: chunked
Date: Mon, 05 Jun 2017 08:09:36 GMT

something

如果我从回复中删除了内容:

<%@ page import = "java.io.Writer" %>
<%
try {
    //Writer outWriter = response.getWriter ();
    //outWriter.write ("something");
    //outWriter.flush ();
    response.setStatus (HttpServletResponse.SC_ACCEPTED);
}
catch (Throwable t) {
  response.sendError (HttpServletResponse.SC_BAD_REQUEST, t.getMessage ());
}%>

我得到了所需的回复代码:

$ curl -i "http://localhost:8090/somepath/somefile.jsp"
HTTP/1.1 202 Accepted
Server: Apache-Coyote/1.1
Set-Cookie: JSESSIONID=52......................AD2; Path=/somepath/; HttpOnly
Content-Type: text/html;charset=ISO-8859-1
Content-Length: 2
Date: Mon, 05 Jun 2017 08:12:57 GMT

是否有一些Tomcat配置更改了响应代码?

我的实际目标是模拟某些第三方Web API的响应,该API预计会返回202响应代码+一些短内容字符串,用于成功请求。

我的服务器会调用此API,需要202响应。我想我可以将其更改为接受200和202响应,但我希望我的代码与第三方API的文档相匹配。

1 个答案:

答案 0 :(得分:1)

将setStatus()移动到JSP的顶部。查看编译后的JSP,了解编译器如何编写代码。机会一旦设置了Status,就无法覆盖。 flush()方法可能已将Status设置为200。