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cxf 相關問題

本文轉載自   查看原文   2013-06-28 09:54   2812    JAVAEE/ ANDROID

cxf不能將String的參數序列化的問題解決

問題：

java.lang.NoSuchMethodError: org.codehaus.jettison.AbstractXMLStreamWriter.serializeAsArray(Ljava/lang/String;)V
    at org.apache.cxf.jaxrs.provider.json.utils.JSONUtils.createStreamWriter(JSONUtils.java:90)
    at org.apache.cxf.jaxrs.provider.json.JSONProvider.createWriter(JSONProvider.java:507)
    at org.apache.cxf.jaxrs.provider.json.JSONProvider.marshal(JSONProvider.java:477)
    at org.apache.cxf.jaxrs.provider.json.JSONProvider.marshal(JSONProvider.java:527)
    at org.apache.cxf.jaxrs.provider.json.JSONProvider.writeTo(JSONProvider.java:371)
    at org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor.writeTo(JAXRSOutInterceptor.java:298)
    at org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor.serializeMessage(JAXRSOutInterceptor.java:258)
    at org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor.processResponse(JAXRSOutInterceptor.java:146)
    at org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor.handleMessage(JAXRSOutInterceptor.java:84)
    at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:262)
    at org.apache.cxf.interceptor.OutgoingChainInterceptor.handleMessage(OutgoingChainInterceptor.java:77)
    at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:262)
    at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:121)
    at org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:211)
    at org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:213)
    at org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:154)
    at org.apache.cxf.transport.servlet.CXFNonSpringServlet.invoke(CXFNonSpringServlet.java:130)
    at org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:221)
    at org.apache.cxf.transport.servlet.AbstractHTTPServlet.doGet(AbstractHTTPServlet.java:146)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
    at org.apache.cxf.transport.servlet.AbstractHTTPServlet.service(AbstractHTTPServlet.java:197)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    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:127)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
    at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:879)
    at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:617)
    at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1760)
    at java.lang.Thread.run(Thread.java:662)
2013-7-1 9:12:40 org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor writeResponseErrorMessage
警告: Error serializing the response, please check the server logs, response class : Result.
View Code

解決：刪除asm-3.1.jar、（另外刪除jettison-1.1.jar、jettison-1.3.2.jar中的1.1）

 

cxf異常處理

 在CXF中默認的異常處理是無法滿足開發需求，經常需要把異常信息轉換為JSON或者XML格式，返回給客戶的，這樣就只能自定義異常處理了。

    在對外提供接口的時候，如果出現異常，一般會通過JSON或XML將異常碼及異常信息反回給客戶，這在CXF中也很容易實現。

 

第一步：編寫自己的異常處理類 InvokeFaultExceptionMapper 

 

 

Java代碼   收藏代碼
  1. @Provider  
  2. public class InvokeFaultExceptionMapper implements ExceptionMapper {  
  3.   
  4.     public Response toResponse(Throwable ex) {  
  5.          StackTraceElement[] trace = new StackTraceElement[1];  
  6.             trace[0] = ex.getStackTrace()[0];  
  7.             ex.setStackTrace(trace);  
  8.             ResponseBuilder rb = Response.status(Response.Status.INTERNAL_SERVER_ERROR);  
  9.             rb.type("application/json;charset=UTF-8");  
  10.             rb.entity(ex);  
  11.             rb.language(Locale.SIMPLIFIED_CHINESE);  
  12.             Response r = rb.build();  
  13.             return r;  
  14.     }  
  15.   
  16. }  

 

第二部：加載InvokeFaultExceptionMapper

 

Xml代碼   收藏代碼
  1. <jaxrs:server id="expGateway" address="/expGateway">  
  2.         <jaxrs:inInterceptors>  
  3.            <ref bean="inMessageInterceptor"/>  
  4.         </jaxrs:inInterceptors>  
  5.         <jaxrs:outInterceptors>  
  6.             <ref bean="outMessageInterceptor"/>  
  7.         </jaxrs:outInterceptors>  
  8.         <jaxrs:serviceBeans>  
  9.             <ref bean="expGatewayImpl" />  
  10.         </jaxrs:serviceBeans>  
  11.         <jaxrs:extensionMappings>  
  12.             <entry key="json" value="application/json" />  
  13.             <entry key="xml" value="application/xml" />  
  14.         </jaxrs:extensionMappings>  
  15.         <jaxrs:languageMappings>  
  16.             <entry key="en" value="en-gb" />  
  17.         </jaxrs:languageMappings>  
  18.         <jaxrs:providers>  
  19.             <bean class="org.codehaus.jackson.jaxrs.JacksonJsonProvider"/>  
  20.             <bean class="com.pml.service.outer.InvokeFaultExceptionMapper"/>  
  21.         </jaxrs:providers>  
  22.     </jaxrs:server>  

 

CXF攔截器用法

http://yufenfei.iteye.com/blog/1688133

 

Apache CXF generates Number instead of String

You can add SimpleConverter to your JSONProvider so that it will not convert strings to numbers. By Default it uses DefaultConverter. But make sure that relevant bean as type string for the field.

1 <bean id="simpleConverter" class="org.codehaus.jettison.mapped.SimpleConverter"/>
2 
3 <bean id="jsonProvider" class="org.apache.cxf.jaxrs.provider.JSONProvider">
4     <property name="typeConverter" ref="simpleConverter"/>
5 </bean>
View Code 
You can find more information about this defect in Jettison http://jira.codehaus.org/browse/JETTISON-61http://jira.codehaus.org/browse/JETTISON-36

 

 cxf 請求參數為json不帶類名頭不識別的問題解決

<?xml version="1.0" encoding="UTF-8"?>
 <beans xmlns="http://www.springframework.org/schema/beans"
     xmlns:util="http://www.springframework.org/schema/util" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
     xmlns:cxf="http://cxf.apache.org/core" xmlns:jaxws="http://cxf.apache.org/jaxws"
     xmlns:jaxrs="http://cxf.apache.org/jaxrs"
     xsi:schemaLocation="http://www.springframework.org/schema/beans
     http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
     http://www.springframework.org/schema/util  
     http://www.springframework.org/schema/util/spring-util-3.0.xsd 
     http://www.springframework.org/schema/context
     http://www.springframework.org/schema/context/spring-context-3.0.xsd
     http://www.springframework.org/schema/tx
     http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
     http://cxf.apache.org/core
     http://cxf.apache.org/schemas/core.xsd
     http://cxf.apache.org/jaxws
     http://cxf.apache.org/schemas/jaxws.xsd
     http://cxf.apache.org/jaxrs
     http://cxf.apache.org/schemas/jaxrs.xsd">
 
     <bean id="loggingInInterceptor" class="org.apache.cxf.interceptor.LoggingInInterceptor" />
     <bean id="loggingOutInterceptor" class="org.apache.cxf.interceptor.LoggingOutInterceptor" />
 
     <util:list id="jsonKeys">
         <value>app</value>
         <value>comment</value>
     </util:list>
 
     <util:list id="jsonTypes">
         <value>application/json</value>
         <value>application/jettison</value>
     </util:list>
 
     <bean id="jsonProvider" class="org.apache.cxf.jaxrs.provider.json.JSONProvider">
         <!--
             <property name="dropRootElement" value="true" /> <property
             name="dropCollectionWrapperElement" value="true" /> <property
             name="supportUnwrapped" value="true" /> <property
             name="serializeAsArray" value="true" /> <property
             name="attributesToElements" value="true"/>
         -->
         <property name="serializeAsArray" value="true" />
         <property name="arrayKeys" ref="jsonKeys" />
         <property name="produceMediaTypes" ref="jsonTypes" />
         <property name="consumeMediaTypes" ref="jsonTypes" />
         <property name="ignoreNamespaces" value="true" />
         <property name="dropRootElement" value="true" />
         <property name="dropCollectionWrapperElement" value="true" />
         <property name="ignoreMixedContent" value="true" />
         <property name="supportUnwrapped" value="true" />
         <property name="attributesToElements" value="true" />
     </bean>
View Code

 

 

REFERENCES:http://hdxiong.iteye.com/blog/1752036

http://stackoverflow.com/questions/10895982/apache-cxf-generates-number-instead-of-string

http://yufenfei.iteye.com/blog/1717098


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