zipkin：HttpClient和struts

时间：2023-01-20 23:35:55

　　因为要和老系统集成zipkin，意外的发现老系统使用的httpClient来发送信息。zipkin的官方demo可都是retstTemplate啊！有的搞头。

　　

在看Demo的时候意外的发现其实其实2.5是支持httpClient的，只有到了spring 3之后才是restTemplate；但是我移植到了struts工程之后发现@Autowired的httpClient返回的是NULL；
原来因为在spring的配置文件中的扫描路径有问题。但是改了路径依然没好，这是怎么回事；后来才发现原来报错的是strturs，strtus在分析spring的配置的时候当然报错了。后来单独设置了spring的servlet，再来定义问题解决。
 <servlet>

 　　<servlet-name>action</servlet-name>

 　　<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>

 　　<init-param>

 　　　　<param-name>config</param-name>

 　　　　<param-value>/WEB-INF/spring-webmvc-servlet.xml,/WEB-INF/struts-config.xml</param-value>

 　　</init-param>

 　　<load-on-startup>1</load-on-startup>

 </servlet>
这样其实在web容器中其实跑的两套servlet，一套是struts一套是spring，剩下的servlet-mapping的事情了，决定那个路径转向那个servlet；每个servlet代表的一套解决方案，比如spring提供的是容器和挑转方案；struts（是struts 1）提供的跳转方案。那么两套方案是否可以结合，我的目标是容器采用spring，跳转采用struts，结合的时候，发生了一些事情。
org.springframework.beans.factory.BeanDefinitionStoreException: Unexpected exception parsing XML document from ServletContext resource [/WEB-INF/spring-webmvc-servlet.xml]; nested exception is java.lang.IllegalStateException: Context namespace element 'component-scan' and its parser class [org.springframework.context.annotation.ComponentScanBeanDefinitionParser] are only available on JDK 1.5 and higher
但是我的已经是jdk 8的啊。后来看到*里面的解释，只能用版本是1.5~1.7；check代码里面只是判断1.5,1.6,1.7，其他版本都被认为是1.4。这是spring里面的一段神判断，其实想想也是有道理，人家写这段代码的时候其实只是到1.7，至于1.8会发生什么无从知晓。
 static {

 　　javaVersion = System.getProperty("java.version");

 　　// version String should look like "1.4.2_10"

 　　if (javaVersion.indexOf("1.7.") != -1) {

 　　　　majorJavaVersion = JAVA_17;

 6　　 }

 　　else if (javaVersion.indexOf("1.6.") != -1) {

 　　　　majorJavaVersion = JAVA_16;

 　　}

 　　else if (javaVersion.indexOf("1.5.") != -1) {

 　　　　majorJavaVersion = JAVA_15;

 　　}

 　　else {

 　　　　// else leave 1.4 as default (it's either 1.4 or unknown)

 　　　　majorJavaVersion = JAVA_14;

 　　}

 }
改了环境变量的路径配置；但是eclipse依然是jdk6，于是关掉elcipse，重启一下，重新读入一下jdk的系统配置；为什么在运行tomcat就不行？因为tomcat环境走的系统的jdk；在elipse里面走的编译是1.6；估计如果是运行其实也是eclipse内部配置；但是tomcat的运行就不行，其实是在eclipse之外跑的。
于是尝试用了eclipse早起的版本，但是本地有的一个Luna版本貌似不是企业版的，没有sServer插件，于是在eclipse里面选择Install New Software...，然后在查询框中输入：
Web、Xml、Java EE and OSGi Enterprise Development
然后根据感觉选择相应的组件即可。
后来换了mars，发现没有Dynamic Web Facts，这次在查询框中输入Web就可以了，根据感觉选就可以了。
 
为什么在struts的action里面就是注入不了呢？
其实不可能成功，spring来管理对象的时候，对于controller类是通过spring的对象池来创建，注入对象，在·DispatcherServlet处理的时候是从object pool中取出之前已经创建好的那个controller供处理请求；但是现在是struts来管理web请求；它是用他的方式来创建Action（相当于spring的controller），当然即使采用spring的声明也不会获取该对象；
 
但是我使用
 WebApplicationContext wac = ContextLoader.getCurrentWebApplicationContext();

 HttpClient httpClient = (HttpClient)wac.getBean("httpClient");
竟然告诉我httpClient没定义！我修改一下log4j的日志级别看看到底咋回事？但是从日志来看应该没问题；
不行，我觉得应该是当前是struts的上下文，即使能够获得ContextLoader，但是此时其实根本就没有WebApplicationContext；后来我改了一种方式：
 ClassPathXmlApplicationContext appContext = new ClassPathXmlApplicationContext(

 new String[] { "applicationContext.xml","spring-webmvc-servlet.xml" });

 BeanFactory factory = (BeanFactory) appContext;

 HttpClient httpClient = (HttpClient)factory.getBean("httpClient");

 //appContext.close();

 return httpClient;
这是在一段单例的对象中获得httpClient；这里有一个注释掉的appContext.close()，因为单例，所以不需要关闭；如果关闭，那么里面AsyncReporter报错，说是已经关闭；所以appContext要保留。这样写终于搞定了，看到zipkin里面有了日志的显示。
虽然讲是sprinig和struts是两套环境，但是其实spring的容器是可以和struts共享的；后来我做了一下测试，在这个工程中配置了spring的servlet-mapping，然后开放了一个类标注为@Controller；发现通过 ContextLoader.getCurrentWebApplicationContext()也是无法获取“httpClient”，但是对象池子这次我特意跟进去，意外的发现对象池里面是有对象的，但是仅限于applicationContext；我其实在web.config里面配置了两个配置文件：spring-webmvc-servlet.xml和applicationContext；但是不知道什么原因只是有application里面出现的对象；后来我把spring-webmvc-servlet.xml里面的bean统一移动到application.xml文件中，发现都有了！这个？难道是spring 2.5的bug吗？我的写法就是最上面那段。
可能是写法有问题，但是不纠结了，而且如果是集中在applicationContext.xml里面定义，struts里面通过ContextLoader.getCurrentWebApplicationContext()也是可以访问到httpClient对象的。
 
但是现在的问题是：感觉没有了portal端的cr和cs，这是怎么回事？
（未解）
 
这一天下来，基本调通；我有一点没想通，为什么获取spring对象费了一些周折，但是Filter过滤器非常成功，因为门户的servlet处理，brave成功抓取发送：
aaarticlea/png;base64,iVBORw0KGgoAAAANSUhEUgAAAe8AAABpCAYAAAATF6u8AAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAA3XSURBVHhe7d1Pb9w2GsfxvKi8otx662G3CLDYe4FFjbQwil66e+ihcGu0QAAfcsiiySCXRYBi0RR2cit8aqeH9SvgihRJPaQeUhpbYw3HXwIfwJIo6m/4EyUHfvT06VMDAADaQXgDANAYwhsAgMYQ3gAANIbwBgCgMYQ3AACNIbwBAGhMNbwpFAqFQqEcXmHkDQBAYwhvAAAaQ3gDANAYwhsAgMbMCO9zc+U/kPflypyr9W7hdGO2S7YHAA/FueyZ9X70dLP1y9NydR7qiP59uzGn2fq9U2ObGdbBIZgI7/7CyovmbobiRQYA7F028HH98tX5uF7OBn7sv9NQLrURHgAI78NSD291ZGwDfWs2p3I6FFHXrru9Mlf9dc8C3940XRvnefuyrRnbsGY8fQLAUZv1FlPru7M+O29D9ONDePv+eyN6681p0he76dAGffReTIy8+yez2ki7f5DrL1Ty5OZuhHDB/cUON427Ibo2k5slfQqUT4jFbWQ33+ynTwA4InP6vlGd0A/HOnm4h34765tDLmR9fTod+mX66H2Z9wtryZNT/uSWT/sLlVzA/qLJAHY/yzpZ/UFlG6NlAPCAhOCc7AeVvlIMkLQ6Q5+thbdsK5+W7dBH78u88JbczSIvTF78sjyM7bS7UcSFlnXicl8/qmwjrOfnTt/AAHCMJkJyFNSdUZ8r2kiW3SW8O/TRe1EPb3vBlVcc/Wz7s71I2mi54y6YXOYvsP3OHW4KWWdUP6hsI6fdoADwAAz9sr4svPkcZH2r6IPd622lDCPxHcJboo9ezMTI216E/IZIL0xyU8gLo4RxuCFi/aSOvQHEtsSy4jbyGyGfBoBjNOrrKoE5Clc5f+hbXf+sfo/O+uZRe/m02Bf66L2Z8dq8D/Ch5DeBXC6WaSNpN69Wp9BWcX4f7EPJtgcARyodHU/1q2m/ORB9azFU7xDe3TR99H7s/s0bAACsivAGAKAxhDcAAI0hvAEAaAzhDQBAY6rhTaFQKBQK5fAK4U2hUCgUSmNlkdfmj/7yT6xAuxat+viTvwEAZiK8G6Zdi1ZpNycAQEd4N0y7Fq3Sbk4AgI7wbph2LVql3ZwAAB3h3TDtWrRKuzkBALq9h/eTS2MuzvRl9+bZO/PBXJsn2rK7km0vsZ0d2tCuRau0m/PjL96YP8x78+1oXijZMuGz13/6OqEode/Q/kHSjif60vy0/dP89IW2DEBrCO+7Wrptwrv3/XslQH8wv5ohgFxAb9+Yz+Lywbfdfffr9+P5UbH9Yb1a+wepFt52WUvHAqDqfsL78rrvJ7sSg9yG1PbaXLi/aufDygXXUFxdV++deRzbfG5Otjfm5Jn9eWMufN3YhsYH4kW3L6GkDxSyndC2Rqknw1b+PKov5vtjOhntz8zj8bRr0Sp5U9rgNTakv8/CaBRANmy1sKqPMndrP7Tj23wdQt+YP15/KR4C/HRYV8wvjuCrI+X+QcKV7Xvza3I8YllcX5sn2P25/CGdB6BZ9xLeJoTvKOhkiNrgEsEZ68qw9vN9e7btD6+eu/mPX910ndPGt5Xx2wp1H511DxPxgcC2L/YjWSYV6o2OaQjd4v7V9idro0a7Fq3Sbs5xuMkwrY2MZZD1RR2F5+1PhnfXUAhAt24+LYN0aNft547BaR8w4sOAexAYjlsuS9oena/B5JsIAE2599fmcXoypGyY98tt8MkQ7H/Owl7UT9vp5NuS03PDslSv2FZl//K2im3UadeiVdrNqYeRCObSa2C3nhypFkbio/b7tpPX5vnIu9imDHr5822k4Z9uK29b1C2Gd+H4ATRrRni/ML+5nlKWG/Pz10MdLViCJ5cywKbD2y4figg0NzItvTIPpV+WtGFHu1NhqYy01Ta0EXneVtxOef/SerU26tLr1Dbt5hyFUR7KbkSqhdWYOvLUws7N68sfr38QobdLeHdEO3LUPItdN3kwycM7L36ZdjzWqD0Arbvnkbd49TwKqT7sYt1kuQ/ts25eDFAxkp2yRFiW6hXbquxf3laxjTrtWrTq42f/Nlf/+6/5l7xB8zCyYV18rV03O7wTYlS7a3hLo/2eIrdr5eFd2OfS8fC9+2HT/m2heffzzTv51lsIKXV6GLW7b8Zdid+JO7Zt9btxrrqt7Ft2Xjcq1JP1s3WL+5dvo9JGjXYtWqXdnKMwctMiIEsj71FY2vBT6o3CLg3g9Fv1DuGdb3/n8J7/zTtpuxDefO8Gjs/9jLzjb5sPYayFVAhoV/xvoqdhKdZ35KvpfJlQC0tnZjtaPdnW3Har+9M/JDzk3zaPtDByQRaKCM+sbv+9OhQZssJU+6MHANlOJby7aRuYQxkHqlMI255tz5fLN8q2Qsn3yc6Tbeb7CeAY7D28sT/atWiVdnPCq4Y8gIeI8G6Ydi1apd2cD1cYQYfCyBlAivBumHYtWqXdnAAAHeHdMO1atEq7OQEAOsK7Ydq1aJV2cwIAdIR3w7Rr0Srt5gQA6AjvhmnXolXazQkA0BHeDdOuBQDg+FXDm0KhUCgUyuGVani/ffsWAAAcmEVem2u017zHTjsPALCmj/76dxwhwntB2nkAgDVpHT/aR3gvSDsPALAmreNH+wjvBWnnAQDWpHX8aB/hvSDtPADAmrSOH+1bJbzd3/gOf6d7LaO/vX132nkAgDVpHf9Hn78xv5v35ptk/o/mF//fkOzfsv80Wdb7NPk7+UP55Ttfx7U7lDhfXTfffqPUcxl8ZV5u/zQvP9eW3Q3hrS27Je08AMCaRh3/d++V8LQhM4StC9rLH4d1SmxbMeht+IugcqE2TH/T9fsyzI9GLbztssKD0F2tF96X1/4GEkFuA3V7bS7c3zL2wepCdiiurqv3zjyObT43J9sbc/LM/rwxF75ubEPjw/ui25dQ0gcK2U5ou047DwCwJtnh2wC1fx/+5Xd54NjgFdPV0WSQhbUN8izwh8CujUD9stfhocKY319/JR4y/HSoL+YXR+/F/e+P82V8C5Dvk3j7kK+vbrdSP6wz5yHoFlYLbxPCV46AfVAPIWoDVARnrCvD2s/37dm2P7x67uY/fnXTnbiNbyvjtxXqPjrrHibiA4FtX+xHsqxMOw8AsCat4x+F22iEmAWzYnp0LtuQIdeXYRTej/pjW27f8mkZlsN+z35DEPn9CMfqAnlozz5sxAcFuyx5q1DYbvFBYb9vGw7itXmclkGusmHeL7fBLEO6/zkLe1E/baeTb0tOT+6HTjsPALAmreMfBU4SVJYMXs3U8j6QYxC67cn6ciSej8rzabmtqe1OsevnDw6ybRnCM7dbDO/8OJZ1y/B+YX6zTy9JuTE/fz3U0cIteHKZvoaeCm83Uo9FBKwbDZdemYfSL0vasKPxqfCeMdLOpecIANandfyjwLHTu4T3KOylPiCTV92K8iv1Wnh33L6Hsms4jo8r7scohLP9KG13tJ6YXzxHd3cAI2/xinoU3n0Yx7rJch/aZzJoKyPt3FR4z21H0M4DZjrdmK25MufaMgC39tE/Xpg3v/3HfCE7/1Hg2FDLwlwLJC95vSz5gJvzqvjW4S1VHyI0eVtyW9k5mLvd0rmydXZ6pb+b9b55h2/RtdBUp4dRu/um3ZX43bpj29a/Y2eq28q+eed1C7TzAABr0jr+ceDYEBsCuf4tOQ9Xrxbco5C1bYTt5+3l0yJE83ZuFd5dCceWrZ88lMhlte0Wwnt4ONmP9Ube8bfNxSt0JSRDQLvifxM9DVWxviNfnefLhGp4WzPbEbTzAABr0jp+PXB8sNkig2pUVx+RusBXSgiwdHktrCvh3U3bUBzKODSdQqCGtn65DPuSH4c4B9n65e3a/dXm5W0va5XwPlbaeQCANWkd/8OlP3i0iPBekHYeAGBNWsf/cBHek7RwO3baeQCANWkdP9pHeC9IOw8AsCat40f7CO8FaecBANakdfxoH+G9IO08AMCatI4f7SO8F6SdBwBYk9bxo32E94K08wAAwNKq4f327VsAAHBgquFNoVAoFArl8MreXptrtFfNx0Y7bgAAlkR4L0w7bgAAlkR4L0w7bgAAlkR4L0w7bgAAlkR4L0w7bgAAlrRaeLu/6R3+LvdalL8fflfacQMAsCTCm/AGADRm3fC+vPb/Y00EuQ3U7bW52Nq5PlhdyA7F1XX13pnHsc3n5mR7Y06e2Z835sLXjW1ofHhfdPsSSvpAIdsJbddpxw0AwJJWDW8TwleOgH1QDyFqA1QEZ6wrw9rP9+3Ztj+8eu7mP351Y8zlxreV8dsKdR+ddQ8T8YHAti/2I1lWph03AABLOpjX5nFaBrnKhnm/3AazDOn+5yzsRf20nU6+LTk9uR867bgBAFjSiuGdvoaeCm83Uo9FBKwbDZdemYfSL0vasKPxqfCeMdLOaccNAMCSDmTkLV5Rj8K7D+NYN1nuQ/tMBm1lpJ2bCu+57QjacWOG043Zmitzri0DcHv82zpK637zDt+ia6GpTg+jdvdNuyvxu3XHtq1/x85Ut5V9887rFmjHDQDAktYdecffNhev0JWQDAHtiv9N9DRUxfqOfHWeLxOq4W3NbEfQjhsAgCWtFt7HSjtuAACWRHgvTDtuAACWRHgvTDtuAACWRHgvTDtuAACWRHgvTDtuAACWRHgvTDtuAACWRHgvTDtuAACWVA1vCoVCoVAoh1fudeQNAADujvAGAKAxhDcAAI0hvAEAaAzhDQBAYwhvAAAaQ3gDANCUp+b/Ez6CC2iSq44AAAAASUVORK5CYIIA" alt="" />

　　下图是brave-hc-client的信息；因为是sr和sc的，是servlet的brave成功捕获。

aaarticlea/png;base64,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" alt="" width="722" height="100" />

　　这是因为web.xml里面的配置内容是tomcat要处理的内容，和框架无关（init-param里面定义的细节内容除外），比如servlet，filter等这些都是被tomcat使用；所以filter其实是被tomcat执行，和spring无关，于是servlet可以被DelegateFilter成功处理；但是到applicationContext.xml之类文件的处理（在web.xml文件<servlet>节点的configLocation中定义的配置文件路径）就是各个框架的servlet有针对性的处理，形成了差异化。或者讲，web.xml里面定义的都是全局性的东西，还没有到分context（上下文）的阶段；到了后面针对bean的处理就是只能是针对具体框架了。

相关文章