CXF RESTful异常统一处理

方案一：实现ExceptionMapper接口类，并配置到providers中。

public class ServiceExceptionMapper implements ExceptionMapper<RuntimeException> {
	private Logger log = Logger.getLogger(ServiceExceptionMapper.class);
	
	@Override
	public Response toResponse(RuntimeException ex) {
		log.error("error", ex);
		
		ExceptionResponseEntity entity = new ExceptionResponseEntity();
		entity.setCode("error");
		entity.setMessage(ex.getMessage());
		//entity.setDetails(getStackTraceString(ex));
        
		String contentType = "application/json; charset=UTF-8";
		ResponseBuilder builder = Response.status(Response.Status.INTERNAL_SERVER_ERROR);
        builder.type(contentType);
        builder.entity(entity);
        builder.language(Locale.SIMPLIFIED_CHINESE);
        
        Response res = builder.build();
        return res;
	}
	
	private String getStackTraceString(RuntimeException ex){
		StringWriter sw = new StringWriter();
		PrintWriter pw = new PrintWriter(sw);
		ex.printStackTrace(pw);
		return sw.toString();
	}
}

     注意：默认情况下entity中的中文内容是以iso-8859-1字符编码返回的，客户端显示可能会出现乱码，需要做编码转换处理。

<bean id="serviceExceptionMapper" class="com.xxx.ServiceExceptionMapper"/> 

<jaxrs:server id="serviceContainer" address="/">
	<jaxrs:serviceBeans>
		
	</jaxrs:serviceBeans> 
	
	<jaxrs:providers>
		<ref bean="jaxbProvider" />
		<ref bean="jsonProvider" />
		<ref bean="serviceExceptionMapper" />
	</jaxrs:providers>
</jaxrs:server>