net.sf.json.JSONException: There is a cycle in the hierarchy異常，解決方法

 

須要在類中添加過濾，過濾掉hibernate配置文件中的多對多、多對一關係。

JsonConfig config = new JsonConfig();

config.setJsonPropertyFilter(new PropertyFilter() {

public boolean apply(Object source, String name, Object value) {

if (name.equals("emisTPersonorgs")) {

return true;

} else {

return false;

}

}

});

JSONObject json = JSONObject.fromObject(reader, config);

 

這個問題也涉及到如下這個異常：

2010-9-14 15:24:25 org.apache.catalina.core.StandardWrapperValve invoke

嚴重: Servlet.service() for servlet action threw exception

java.lang.AbstractMethodError: oracle.jdbc.driver.T4CConnection.getClientInfo()Ljava/util/Properties;

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at org.logicalcobwebs.proxool.ProxyConnection.invoke(ProxyConnection.java:68)

at org.logicalcobwebs.cglib.proxy.Proxy$ProxyImpl$$EnhancerByCGLIB$$b7939e3d.getClientInfo(<generated>)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at org.apache.commons.beanutils.PropertyUtilsBean.invokeMethod(PropertyUtilsBean.java:2155)

at org.apache.commons.beanutils.PropertyUtilsBean.getSimpleProperty(PropertyUtilsBean.java:1323)

at org.apache.commons.beanutils.PropertyUtilsBean.getNestedProperty(PropertyUtilsBean.java:762)

at org.apache.commons.beanutils.PropertyUtilsBean.getProperty(PropertyUtilsBean.java:837)

at org.apache.commons.beanutils.PropertyUtils.getProperty(PropertyUtils.java:426)

at net.sf.json.JSONObject._fromBean(JSONObject.java:918)

at net.sf.json.JSONObject.fromObject(JSONObject.java:168)

at net.sf.json.AbstractJSON._processValue(AbstractJSON.java:265)

at net.sf.json.JSONObject._processValue(JSONObject.java:2808)

at net.sf.json.JSONObject.processValue(JSONObject.java:2874)

at net.sf.json.JSONObject.setInternal(JSONObject.java:2889)

at net.sf.json.JSONObject.setValue(JSONObject.java:1577)

at net.sf.json.JSONObject._fromBean(JSONObject.java:934)

at net.sf.json.JSONObject.fromObject(JSONObject.java:168)

at net.sf.json.AbstractJSON._processValue(AbstractJSON.java:265)

at net.sf.json.JSONObject._processValue(JSONObject.java:2808)

at net.sf.json.JSONObject.processValue(JSONObject.java:2874)

at net.sf.json.JSONObject.setInternal(JSONObject.java:2889)

at net.sf.json.JSONObject.setValue(JSONObject.java:1577)

at net.sf.json.JSONObject._fromBean(JSONObject.java:934)

at net.sf.json.JSONObject.fromObject(JSONObject.java:168)

at net.sf.json.AbstractJSON._processValue(AbstractJSON.java:265)

at net.sf.json.JSONObject._processValue(JSONObject.java:2808)

at net.sf.json.JSONObject.processValue(JSONObject.java:2874)

at net.sf.json.JSONObject.setInternal(JSONObject.java:2889)

at net.sf.json.JSONObject.setValue(JSONObject.java:1577)

at net.sf.json.JSONObject._fromBean(JSONObject.java:934)

at net.sf.json.JSONObject.fromObject(JSONObject.java:168)

at net.sf.json.AbstractJSON._processValue(AbstractJSON.java:265)

at net.sf.json.JSONObject._processValue(JSONObject.java:2808)

at net.sf.json.JSONObject.processValue(JSONObject.java:2874)

at net.sf.json.JSONObject.setInternal(JSONObject.java:2889)

at net.sf.json.JSONObject.setValue(JSONObject.java:1577)

at net.sf.json.JSONObject._fromBean(JSONObject.java:934)

at net.sf.json.JSONObject.fromObject(JSONObject.java:168)

at net.sf.json.AbstractJSON._processValue(AbstractJSON.java:265)

at net.sf.json.JSONObject._processValue(JSONObject.java:2808)

at net.sf.json.JSONObject.processValue(JSONObject.java:2874)

at net.sf.json.JSONObject.setInternal(JSONObject.java:2889)

at net.sf.json.JSONObject.setValue(JSONObject.java:1577)

at net.sf.json.JSONObject._fromBean(JSONObject.java:934)

at net.sf.json.JSONObject.fromObject(JSONObject.java:168)

at net.sf.json.AbstractJSON._processValue(AbstractJSON.java:265)

at net.sf.json.JSONArray._processValue(JSONArray.java:2514)

at net.sf.json.JSONArray.processValue(JSONArray.java:2539)

at net.sf.json.JSONArray.addValue(JSONArray.java:2526)

at net.sf.json.JSONArray._fromArray(JSONArray.java:982)

at net.sf.json.JSONArray.fromObject(JSONArray.java:133)

at net.sf.json.AbstractJSON._processValue(AbstractJSON.java:237)

at net.sf.json.JSONArray._processValue(JSONArray.java:2514)

at net.sf.json.JSONArray.processValue(JSONArray.java:2539)

at net.sf.json.JSONArray.addValue(JSONArray.java:2526)

at net.sf.json.JSONArray._fromCollection(JSONArray.java:1057)

at net.sf.json.JSONArray.fromObject(JSONArray.java:123)

at net.sf.json.AbstractJSON._processValue(AbstractJSON.java:237)

at net.sf.json.JSONObject._processValue(JSONObject.java:2808)

at net.sf.json.JSONObject.processValue(JSONObject.java:2874)

at net.sf.json.JSONObject.setInternal(JSONObject.java:2889)

at net.sf.json.JSONObject.setValue(JSONObject.java:1577)

at net.sf.json.JSONObject._fromBean(JSONObject.java:934)

at net.sf.json.JSONObject.fromObject(JSONObject.java:168)

at cn.gov.cepb.emis.emcase.struts.casetask.CaseTaskAction.getPersonList(CaseTaskAction.java:109)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:269)

at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:170)

at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)

at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)

at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)

at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:462)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:96)

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:378)

at org.springframework.security.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:99)

at org.springframework.security.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)

at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)

at org.springframework.security.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:109)

at org.springframework.security.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)

at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)

at org.springframework.security.ui.SessionFixationProtectionFilter.doFilterHttp(SessionFixationProtectionFilter.java:67)

at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)

at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)

at org.springframework.security.ui.ExceptionTranslationFilter.doFilterHttp(ExceptionTranslationFilter.java:101)

at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)

at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)

at org.springframework.security.providers.anonymous.AnonymousProcessingFilter.doFilterHttp(AnonymousProcessingFilter.java:105)

at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)

at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)

at org.springframework.security.ui.rememberme.RememberMeProcessingFilter.doFilterHttp(RememberMeProcessingFilter.java:116)

at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)

at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)

at org.springframework.security.wrapper.SecurityContextHolderAwareRequestFilter.doFilterHttp(SecurityContextHolderAwareRequestFilter.java:91)

at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)

at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)

at org.springframework.security.ui.basicauth.BasicProcessingFilter.doFilterHttp(BasicProcessingFilter.java:174)

at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)

at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)

at org.springframework.security.ui.AbstractProcessingFilter.doFilterHttp(AbstractProcessingFilter.java:277)

at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)

at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)

at org.springframework.security.ui.logout.LogoutFilter.doFilterHttp(LogoutFilter.java:89)

at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)

at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)

at org.springframework.security.context.HttpSessionContextIntegrationFilter.doFilterHttp(HttpSessionContextIntegrationFilter.java:235)

at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)

at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)

at org.springframework.security.concurrent.ConcurrentSessionFilter.doFilterHttp(ConcurrentSessionFilter.java:99)

at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)

at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)

at org.springframework.security.util.FilterChainProxy.doFilter(FilterChainProxy.java:175)

at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:236)

at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)

at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)

at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)

at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)

at java.lang.Thread.run(Thread.java:619)

 

這個問題我在網上查詢了一下，不少人都是說是oracle驅動的問題，我所產生的這個異常是由於在json過濾的時候沒有把實體中其餘對象關係過濾掉，因此拋出異常