記一次給古老的cxf-ws項(xiàng)目添加文件上傳功能

背景環(huán)境說明

工作中難免遇到歷史項(xiàng)目，今天算是見識(shí)了。項(xiàng)目為spring4+strust2+hibernate+cxf的工程，主要功能是給外部封裝本地jira的一些接口調(diào)用，坑爹的是jira系統(tǒng)版本為7.10.2#710003（目前最新為8.x.x，還不算太舊），但jira-rest-java-client卻是2012年的1.1版本（最新的都5了，相當(dāng)無語(yǔ)），其實(shí)這些還可以接受。最受不了的是工程結(jié)構(gòu)應(yīng)該是gradle（v2.0.0）發(fā)布沒多久時(shí)的那種結(jié)構(gòu)，本人相當(dāng)?shù)膽校ㄉ婕伴_發(fā)環(huán)境的倒退不想玩了），至今本地也沒跑起來。

1.千辛萬(wàn)苦導(dǎo)入工程代碼

憑借以往經(jīng)驗(yàn)，gradle項(xiàng)目的git庫(kù)里應(yīng)該是沒有如下閑雜代碼的


image.png

一開始git clone后沒注意，直接import，報(bào)各種環(huán)境相關(guān)的錯(cuò)誤。
一頓刪除操作后，重新導(dǎo)入，出現(xiàn)如下錯(cuò)誤（未保留實(shí)際現(xiàn)場(chǎng)）

Could not find method leftShift() for arguments

起初也沒在意，抱著項(xiàng)目能運(yùn)行的理解，以為問題出在導(dǎo)入工程上，來來回回重新git clone多次，才去google了一把這個(gè)錯(cuò)，

原來是gradle 4以后<<操作符已經(jīng)廢棄，5就直接干掉了。
| 參考 https://blog.csdn.net/djzhao627/article/details/90292063
此處省略無數(shù) << 轉(zhuǎn) doLast 操作

image.png

2.本地開發(fā)直接上sit

幸好在jenkins上存在打包腳本，本地環(huán)境就不搭了（偷個(gè)懶，哈哈）
然jenkins打包出了個(gè)錯(cuò)，心慌慌啊

08-28 14:57:12.391 [main] WARN  org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:487) - Exception encountered during context initialization - cancelling refresh attempt
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'commJiraService': Invocation of init method failed; nested exception is javax.xml.ws.WebServiceException: org.apache.cxf.service.factory.ServiceConstructionException
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1566) ~[spring-beans-4.1.3.RELEASE.jar:4.1.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539) ~[spring-beans-4.1.3.RELEASE.jar:4.1.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476) ~[spring-beans-4.1.3.RELEASE.jar:4.1.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302) ~[spring-beans-4.1.3.RELEASE.jar:4.1.3.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.1.3.RELEASE.jar:4.1.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298) ~[spring-beans-4.1.3.RELEASE.jar:4.1.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193) ~[spring-beans-4.1.3.RELEASE.jar:4.1.3.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:762) ~[spring-beans-4.1.3.RELEASE.jar:4.1.3.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757) ~[spring-context-4.1.3.RELEASE.jar:4.1.3.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480) ~[spring-context-4.1.3.RELEASE.jar:4.1.3.RELEASE]
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403) [spring-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306) [spring-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106) [spring-web-4.1.3.RELEASE.jar:4.1.3.RELEASE]
    at org.eclipse.jetty.server.handler.ContextHandler.callContextInitialized(ContextHandler.java:800) [jetty-server-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.servlet.ServletContextHandler.callContextInitialized(ServletContextHandler.java:444) [jetty-servlet-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:791) [jetty-server-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:294) [jetty-servlet-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1349) [jetty-webapp-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1342) [jetty-webapp-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:741) [jetty-server-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:505) [jetty-webapp-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) [jetty-util-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.deploy.bindings.StandardStarter.processBinding(StandardStarter.java:41) [jetty-deploy-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.deploy.AppLifeCycle.runBindings(AppLifeCycle.java:186) [jetty-deploy-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.deploy.DeploymentManager.requestAppGoal(DeploymentManager.java:498) [jetty-deploy-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.deploy.DeploymentManager.addApp(DeploymentManager.java:146) [jetty-deploy-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.deploy.providers.ScanningAppProvider.fileAdded(ScanningAppProvider.java:180) [jetty-deploy-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.deploy.providers.WebAppProvider.fileAdded(WebAppProvider.java:461) [jetty-deploy-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.deploy.providers.ScanningAppProvider$1.fileAdded(ScanningAppProvider.java:64) [jetty-deploy-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.util.Scanner.reportAddition(Scanner.java:609) [jetty-util-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.util.Scanner.reportDifferences(Scanner.java:528) [jetty-util-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.util.Scanner.scan(Scanner.java:391) [jetty-util-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.util.Scanner.doStart(Scanner.java:313) [jetty-util-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) [jetty-util-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.deploy.providers.ScanningAppProvider.doStart(ScanningAppProvider.java:150) [jetty-deploy-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) [jetty-util-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.deploy.DeploymentManager.startAppProvider(DeploymentManager.java:560) [jetty-deploy-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.deploy.DeploymentManager.doStart(DeploymentManager.java:235) [jetty-deploy-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) [jetty-util-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132) [jetty-util-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.server.Server.start(Server.java:387) [jetty-server-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114) [jetty-util-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61) [jetty-server-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.server.Server.doStart(Server.java:354) [jetty-server-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) [jetty-util-9.2.10.v20150310.jar:9.2.10.v20150310]
    at org.eclipse.jetty.xml.XmlConfiguration$1.run(XmlConfiguration.java:1255) [jetty-xml-9.2.10.v20150310.jar:9.2.10.v20150310]
    at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_40]
    at org.eclipse.jetty.xml.XmlConfiguration.main(XmlConfiguration.java:1174) [jetty-xml-9.2.10.v20150310.jar:9.2.10.v20150310]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_40]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_40]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_40]
    at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_40]
    at org.eclipse.jetty.start.Main.invokeMain(Main.java:321) [start.jar:9.2.10.v20150310]
    at org.eclipse.jetty.start.Main.start(Main.java:817) [start.jar:9.2.10.v20150310]
    at org.eclipse.jetty.start.Main.main(Main.java:112) [start.jar:9.2.10.v20150310]
Caused by: javax.xml.ws.WebServiceException: org.apache.cxf.service.factory.ServiceConstructionException
    at org.apache.cxf.jaxws.EndpointImpl.doPublish(EndpointImpl.java:371) ~[cxf-rt-frontend-jaxws-3.0.3.jar:3.0.3]
    at org.apache.cxf.jaxws.EndpointImpl.publish(EndpointImpl.java:251) ~[cxf-rt-frontend-jaxws-3.0.3.jar:3.0.3]
    at org.apache.cxf.jaxws.EndpointImpl.publish(EndpointImpl.java:539) ~[cxf-rt-frontend-jaxws-3.0.3.jar:3.0.3]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_40]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_40]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_40]
    at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_40]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1694) ~[spring-beans-4.1.3.RELEASE.jar:4.1.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1633) ~[spring-beans-4.1.3.RELEASE.jar:4.1.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1562) ~[spring-beans-4.1.3.RELEASE.jar:4.1.3.RELEASE]
    ... 54 common frames omitted
Caused by: org.apache.cxf.service.factory.ServiceConstructionException: null
    at org.apache.cxf.jaxb.JAXBDataBinding.initialize(JAXBDataBinding.java:327) ~[cxf-rt-databinding-jaxb-3.0.3.jar:3.0.3]
    at org.apache.cxf.service.factory.AbstractServiceFactoryBean.initializeDataBindings(AbstractServiceFactoryBean.java:86) ~[cxf-core-3.0.3.jar:3.0.3]
    at org.apache.cxf.wsdl.service.factory.ReflectionServiceFactoryBean.buildServiceFromClass(ReflectionServiceFactoryBean.java:467) ~[cxf-rt-wsdl-3.0.3.jar:3.0.3]
    at org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean.buildServiceFromClass(JaxWsServiceFactoryBean.java:704) ~[cxf-rt-frontend-jaxws-3.0.3.jar:3.0.3]
    at org.apache.cxf.wsdl.service.factory.ReflectionServiceFactoryBean.initializeServiceModel(ReflectionServiceFactoryBean.java:527) ~[cxf-rt-wsdl-3.0.3.jar:3.0.3]
    at org.apache.cxf.wsdl.service.factory.ReflectionServiceFactoryBean.create(ReflectionServiceFactoryBean.java:261) ~[cxf-rt-wsdl-3.0.3.jar:3.0.3]
    at org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean.create(JaxWsServiceFactoryBean.java:215) ~[cxf-rt-frontend-jaxws-3.0.3.jar:3.0.3]
    at org.apache.cxf.frontend.AbstractWSDLBasedEndpointFactory.createEndpoint(AbstractWSDLBasedEndpointFactory.java:102) ~[cxf-rt-frontend-simple-3.0.3.jar:3.0.3]
    at org.apache.cxf.frontend.ServerFactoryBean.create(ServerFactoryBean.java:159) ~[cxf-rt-frontend-simple-3.0.3.jar:3.0.3]
    at org.apache.cxf.jaxws.JaxWsServerFactoryBean.create(JaxWsServerFactoryBean.java:211) ~[cxf-rt-frontend-jaxws-3.0.3.jar:3.0.3]
    at org.apache.cxf.jaxws.EndpointImpl.getServer(EndpointImpl.java:456) ~[cxf-rt-frontend-jaxws-3.0.3.jar:3.0.3]
    at org.apache.cxf.jaxws.EndpointImpl.doPublish(EndpointImpl.java:334) ~[cxf-rt-frontend-jaxws-3.0.3.jar:3.0.3]
    ... 63 common frames omitted
Caused by: com.sun.xml.bind.v2.runtime.IllegalAnnotationsException: 1 counts of IllegalAnnotationExceptions
    at com.sun.xml.bind.v2.runtime.IllegalAnnotationsException$Builder.check(IllegalAnnotationsException.java:106) ~[jaxb-impl-2.2.7.jar:2.2.7]
    at com.sun.xml.bind.v2.runtime.JAXBContextImpl.getTypeInfoSet(JAXBContextImpl.java:471) ~[jaxb-impl-2.2.7.jar:2.2.7]
    at com.sun.xml.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:303) ~[jaxb-impl-2.2.7.jar:2.2.7]
    at com.sun.xml.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:142) ~[jaxb-impl-2.2.7.jar:2.2.7]
    at com.sun.xml.bind.v2.runtime.JAXBContextImpl$JAXBContextBuilder.build(JAXBContextImpl.java:1174) ~[jaxb-impl-2.2.7.jar:2.2.7]
    at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:162) ~[jaxb-impl-2.2.7.jar:2.2.7]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_40]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_40]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_40]
    at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_40]
    at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:247) ~[na:1.8.0_40]
    at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:234) ~[na:1.8.0_40]
    at javax.xml.bind.ContextFinder.find(ContextFinder.java:441) ~[na:1.8.0_40]
    at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:641) ~[na:1.8.0_40]
    at org.apache.cxf.common.jaxb.JAXBContextCache$2.run(JAXBContextCache.java:347) ~[cxf-core-3.0.3.jar:3.0.3]
    at org.apache.cxf.common.jaxb.JAXBContextCache$2.run(JAXBContextCache.java:345) ~[cxf-core-3.0.3.jar:3.0.3]
    at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_40]
    at org.apache.cxf.common.jaxb.JAXBContextCache.createContext(JAXBContextCache.java:345) ~[cxf-core-3.0.3.jar:3.0.3]
    at org.apache.cxf.common.jaxb.JAXBContextCache.getCachedContextAndSchemas(JAXBContextCache.java:246) ~[cxf-core-3.0.3.jar:3.0.3]
    at org.apache.cxf.jaxb.JAXBDataBinding.createJAXBContextAndSchemas(JAXBDataBinding.java:470) ~[cxf-rt-databinding-jaxb-3.0.3.jar:3.0.3]
    at org.apache.cxf.jaxb.JAXBDataBinding.initialize(JAXBDataBinding.java:325) ~[cxf-rt-databinding-jaxb-3.0.3.jar:3.0.3]
    ... 74 common frames omitted

這下懵逼了，檢查了一下cxf的版本為3.0.0，最新的3.3.2，google有網(wǎng)友給的答案是說更新cxf到最新版本，這下我可很慌啊，心里嘀咕更新了搞不好引入新的bug那就呵呵了，而且lib都是在本地，不是通過maven管理的，這期間難免會(huì)出現(xiàn)包缺失的bug
算了，還是老實(shí)點(diǎn)先看看cxf3.3.2里的sample吧
咦，人家是這樣寫的

@XmlType(name = "IntegerUserMap")
@XmlAccessorType(XmlAccessType.FIELD)
public class IntegerUserMap {
    @XmlElement(nillable = false, name = "entry")
    List<IntegerUserEntry> entries = new ArrayList<>();

    public List<IntegerUserEntry> getEntries() {
        return entries;
    }

    @XmlAccessorType(XmlAccessType.FIELD)
    @XmlType(name = "IdentifiedUser")
    static class IntegerUserEntry {
        //Map keys cannot be null
        @XmlElement(required = true, nillable = false)
        Integer id;

        User user;

        public void setId(Integer k) {
            id = k;
        }
        public Integer getId() {
            return id;
        }

        public void setUser(User u) {
            user = u;
        }
        public User getUser() {
            return user;
        }
    }
}

為什么人家有xml相關(guān)的一坨注解，我的model里任何注解都沒有，只在文件上傳部分有個(gè)

@XmlMimeType("application/octet-stream")
    private DataHandler file;

還是跟著官方走，加上后長(zhǎng)這樣了

@XmlType(name = "CxfFileHandler")
@XmlAccessorType(XmlAccessType.FIELD)
public class CxfFileHandler implements Serializable {
    @XmlElement(required = true, nillable = false)
    private String fileName;

    @XmlElement
    private String fileExt;

    @XmlElement(required = true, nillable = false)
    @XmlMimeType("application/octet-stream")
    private DataHandler file;

        ......
}

再打包，ok了，謝天謝地

3. 本地代碼生成

通過

wsdl2java http://xxx/createService?wsdl

生成的代碼，發(fā)現(xiàn)方法參數(shù)都變成了arg0...


image.png

通用參考官方sample，
我擦，要寫的這么復(fù)雜嗎（只是第一感覺）

@WebService(targetNamespace = "http://cxf.apache.org/mime", name = "TestMtomPortType")
@XmlSeeAlso({org.apache.cxf.mime.types.ObjectFactory.class})
public interface TestMtomPortType {

    @WebMethod
    @RequestWrapper(localName = "testDataHandler", targetNamespace = "http://cxf.apache.org/mime/types", className = "org.apache.cxf.mime.types.DataHandlerType")
    @ResponseWrapper(localName = "testDataHandlerResponse", targetNamespace = "http://cxf.apache.org/mime/types", className = "org.apache.cxf.mime.types.DataHandlerType")
    public void testDataHandler(

        @WebParam(mode = WebParam.Mode.INOUT, name = "name", targetNamespace = "http://cxf.apache.org/mime/types")
        javax.xml.ws.Holder<java.lang.String> name,
        @WebParam(mode = WebParam.Mode.INOUT, name = "attachinfo", targetNamespace = "http://cxf.apache.org/mime/types")
        javax.xml.ws.Holder<javax.activation.DataHandler> attachinfo
    );

    @WebMethod
    @RequestWrapper(localName = "testByteArray", targetNamespace = "http://cxf.apache.org/mime/types", className = "org.apache.cxf.mime.types.ByteArrayType")
    @ResponseWrapper(localName = "testByteArrayResponse", targetNamespace = "http://cxf.apache.org/mime/types", className = "org.apache.cxf.mime.types.ByteArrayType")
    public void testByteArray(

        @WebParam(mode = WebParam.Mode.INOUT, name = "name", targetNamespace = "http://cxf.apache.org/mime/types")
        javax.xml.ws.Holder<java.lang.String> name,
        @WebParam(mode = WebParam.Mode.INOUT, name = "attachinfo", targetNamespace = "http://cxf.apache.org/mime/types")
        javax.xml.ws.Holder<byte[]> attachinfo
    );
}

是不是多了一些注解，比如@XmlSeeAlso，@WebMethod，@ResponseWrapper，@WebParam，一般ws開發(fā)就一個(gè)@WebService搞定一切，
再，其實(shí)很明顯，要想保留數(shù)名，用@WebParam即可，至于其他注解，先不追究了（記性不好，學(xué)習(xí)了不用也會(huì)忘掉，如有高手還望發(fā)表評(píng)論指教在下，萬(wàn)般感謝！?。?/p>

最后

解決問題的過程是煎熬難過的，
問題解決了心情是愉悅舒暢，富有成就感的，
程序員之間多多鼓勵(lì)，不要互相傷害，共勉！

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