wechat4J存在的BUG
最近微信服务号项目上线，碰到一个问题 老是同步获取微信用户时出错，定位到wechat4j源码，查看微信服务号官方文档获取用户基本信息API信息。
2017-12-10 13:50:30,644 [catalina-exec-2197] ERROR [500.jsp:150] - No enum constant org.sword.wechat4j.user.LanguageType.zh_HK
com.alibaba.fastjson.JSONException: No enum constant org.sword.wechat4j.user.LanguageType.zh_HKat com.alibaba.fastjson.parser.deserializer.EnumDeserializer.deserialze(EnumDeserializer.java:108)at com.alibaba.fastjson.parser.deserializer.DefaultFieldDeserializer.parseField(DefaultFieldDeserializer.java:71)at com.alibaba.fastjson.parser.deserializer.JavaBeanDeserializer.parseField(JavaBeanDeserializer.java:828)at com.alibaba.fastjson.parser.deserializer.JavaBeanDeserializer.deserialze(JavaBeanDeserializer.java:630)at com.alibaba.fastjson.parser.deserializer.JavaBeanDeserializer.parseRest(JavaBeanDeserializer.java:1010)at com.alibaba.fastjson.parser.deserializer.FastjsonASMDeserializer_2_User.deserialze(Unknown Source)at com.alibaba.fastjson.parser.deserializer.JavaBeanDeserializer.deserialze(JavaBeanDeserializer.java:208)at com.alibaba.fastjson.parser.DefaultJSONParser.parseObject(DefaultJSONParser.java:642)at com.alibaba.fastjson.JSON.parseObject(JSON.java:350)at com.alibaba.fastjson.JSON.parseObject(JSON.java:254)at com.alibaba.fastjson.JSON.parseObject(JSON.java:467)at org.sword.wechat4j.user.UserManager.getUserInfo(UserManager.java:133)at com.yls.projects.wx.home.wechat.Wechat.location(Wechat.java:120)at org.sword.wechat4j.WechatSupport.dispatchEvent(WechatSupport.java:193)at org.sword.wechat4j.WechatSupport.dispatchMessage(WechatSupport.java:144)at org.sword.wechat4j.WechatSupport.dispatch(WechatSupport.java:109)at org.sword.wechat4j.WechatSupport.execute(WechatSupport.java:89)at com.yls.projects.wx.home.web.wxHomeController.act(wxHomeController.java:47)at sun.reflect.GeneratedMethodAccessor1924.invoke(Unknown Source)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:498)at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:222)at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:775)at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:705)at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:965)at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:867)at javax.servlet.http.HttpServlet.service(HttpServlet.java:661)at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:841)at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)at com.opensymphony.sitemesh.webapp.SiteMeshFilter.obtainContent(SiteMeshFilter.java:129)at com.opensymphony.sitemesh.webapp.SiteMeshFilter.doFilter(SiteMeshFilter.java:77)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449)at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383)at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344)at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:85)at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478)at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650)at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803)at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459)at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.IllegalArgumentException: No enum constant org.sword.wechat4j.user.LanguageType.zh_HKat java.lang.Enum.valueOf(Enum.java:238)at com.alibaba.fastjson.parser.deserializer.EnumDeserializer.deserialze(EnumDeserializer.java:94)... 74 more经过一番查证
1、这个是wechat4j获取用户信息时调用的，问题就出现在红色标注的地方
2、这个是微信官方API，可以看到红色标注的地方，会返回"用户的语言”该属性
3、可以看到，wechat4j框架中的用户实体“用户语言”该属性用的枚举类型，
4、这个wechat4j框架的“用户语言”属性的枚举类，并且只列了三种，这就是问题：如果微信用户的返回的语言类型并不在这三种之中，很显然肯定会报上面贴出的错误。
1、自己新建个获取用户的工具类，并且修改实体的“用户语言”属性为字符串，这样在JSONobje.parse转化时保证正常转化。
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