最近在做一个项目, 架构上使用了 Nginx +tomcat 集群, 且nginx下配置了SSL,tomcat no SSL,项目使用https协议

但是,明明是https url请求,发现 log里面,

 

0428 15:55:55 INFO  (PaymentInterceptor.java:44) preHandle() - requestStringForLog:    {  
        "request.getRequestURL():": "http://trade.feilong.com/payment/paymentChannel?id=212&s=a84485e0985afe97fffd7fd7741c93851d83a4f6",  
        "request.getMethod:": "GET",  
        "_parameterMap":         {  
            "id": ["212"],  
            "s": ["a84485e0985afe97fffd7fd7741c93851d83a4f6"]  
        }  
    }
request.getRequestURL() 输出出来的 一直是  http://trade.feilong.com/payment/paymentChannel?id=212&s=a84485e0985afe97fffd7fd7741c93851d83a4f6
但是浏览器中的URL却是 https://trade.feilong.com/payment/paymentChannel?id=212&s=a84485e0985afe97fffd7fd7741c93851d83a4f6

 

 

瞬间要颠覆我的Java观尴尬,API上写得很清楚:

 

getRequestURL():

Reconstructs the URL the client used to make the request. The returned URL contains a protocol, server name, port number, and server path, but it does not include query string parameters.

也就是说, getRequestURL() 输出的是不带query string的路经(含协议 端口 server path等信息).

 

 

并且,还发现

 

request.getScheme()  //总是 http，而不是实际的http或https  
request.isSecure()  //总是false（因为总是http）  
request.getRemoteAddr()  //总是 nginx 请求的 IP，而不是用户的IP  
request.getRequestURL()  //总是 nginx 请求的URL 而不是用户实际请求的 URL  
response.sendRedirect( 相对url )  //总是重定向到 http 上 （因为认为当前是 http 请求）

查阅了一些资料,找到了解决方案:

 

解决方法很简单，只需要分别配置一下 Nginx 和 Tomcat 就好了，而不用改程序。

 

配置 Nginx 的转发选项：

proxy_set_header       Host $host;  
proxy_set_header  X-Real-IP  $remote_addr;  
proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;  
proxy_set_header X-Forwarded-Proto  $scheme;

proxy_set_header X-Forwarded-Proto $scheme;

 

配置Tomcat server.xml 的 Engine 模块下配置一个 Valve：

<Valve className="org.apache.catalina.valves.RemoteIpValve"  
remoteIpHeader="X-Forwarded-For"  
protocolHeader="X-Forwarded-Proto"  
protocolHeaderHttpsValue="https"/>

位置如下

<Host name="localhost"  appBase="webapps"
            unpackWARs="true" autoDeploy="true">

        <!-- SingleSignOn valve, share authentication between web applications
             Documentation at: /docs/config/valve.html -->
        <!--
        <Valve className="org.apache.catalina.authenticator.SingleSignOn" />
        -->

        <!-- Access log processes all example.
             Documentation at: /docs/config/valve.html
             Note: The pattern used is equivalent to using pattern="common" -->
        <!-- <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
               prefix="localhost_access_log" suffix=".txt"
               pattern="%h %l %u %t &quot;%r&quot; %s %b" /> -->
        <!--- nginx https-->
         <Valve className="org.apache.catalina.valves.RemoteIpValve"
             remoteIpHeader="X-Forwarded-For"
             protocolHeader="X-Forwarded-Proto"
             protocolHeaderHttpsValue="https"/>
      </Host>

 

配置双方的 X-Forwarded-Proto 就是为了正确地识别实际用户发出的协议是 http 还是 https。

这样以上5项测试就都变为正确的结果了，就像用户在直接访问 Tomcat 一样。

 

关于 RemoteIpValve,有兴趣的同学可以阅读下 doc 

http://tomcat.apache.org/tomcat-6.0-doc/api/org/apache/catalina/valves/RemoteIpValve.html

Tomcat port of mod_remoteip, this valve replaces the apparent client remote IP address and hostname for the request with the IP address list presented by a proxy or a load balancer via a request headers (e.g. "X-Forwarded-For").   
   
Another feature of this valve is to replace the apparent scheme (http/https) and server port with the scheme presented by a proxy or a load balancer via a request header (e.g. "X-Forwarded-Proto").

看了下他们的源码,比较简单,在各种框架,各种算法面前,这个类对性能影响很小

 

  • 如果没有配置protocolHeader 属性, 什么都不做.
  • 如果配置了protocolHeader,但是request.getHeader(protocolHeader)取出来的值是null,什么都不做
  • 如果配置了protocolHeader,但是request.getHeader(protocolHeader)取出来的值(忽略大小写)是 配置的protocolHeaderHttpsValue(默认https),scheme设置为https,端口设置 为 httpsServerPort
  • 其他设置为 http
if (protocolHeader != null) {  
    String protocolHeaderValue = request.getHeader(protocolHeader);  
    if (protocolHeaderValue == null) {  
        // don't modify the secure,scheme and serverPort attributes  
        // of the request  
    } else if (protocolHeaderHttpsValue.equalsIgnoreCase(protocolHeaderValue)) {  
        request.setSecure(true);  
        // use request.coyoteRequest.scheme instead of request.setScheme() because request.setScheme() is no-op in Tomcat 6.0  
        request.getCoyoteRequest().scheme().setString("https");  
          
        request.setServerPort(httpsServerPort);  
    } else {  
        request.setSecure(false);  
        // use request.coyoteRequest.scheme instead of request.setScheme() because request.setScheme() is no-op in Tomcat 6.0  
        request.getCoyoteRequest().scheme().setString("http");  
          
        request.setServerPort(httpServerPort);  
    }  
}

转载地址：http://www.cnblogs.com/interdrp/p/4881785.html