标签：iso instance restful 防止 efault failure pattern option charset
// compile ‘org.jboss.resteasy:resteasy-jackson-provider:3.0.14.Final‘
// compile ‘org.jboss.resteasy:resteasy-jaxb-provider:3.0.16.Final‘
1 <web-app id="WebApp_ID" version="2.4" 2 xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 3 xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee 4 http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> 5 <display-name>Restful Web Application</display-name> 6 7 <context-param> 8 <param-name>resteasy.resources</param-name> 9 <param-value>com.cnblogs.yjmyzz.ProductService</param-value> 10 </context-param> 11 12 <context-param> 13 <param-name>resteasy.scan.providers</param-name> 14 <param-value>false</param-value> 15 </context-param> 16 17 <context-param> 18 <param-name>resteasy.providers</param-name> 19 <param-value>com.alibaba.fastjson.support.jaxrs.FastJsonProvider</param-value> 20 </context-param> 21 22 <listener> 23 <listener-class> 24 org.jboss.resteasy.plugins.server.servlet.ResteasyBootstrap 25 </listener-class> 26 </listener> 27 28 <servlet> 29 <servlet-name>resteasy-servlet</servlet-name> 30 <servlet-class> 31 org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher 32 </servlet-class> 33 </servlet> 34 35 <servlet-mapping> 36 <servlet-name>resteasy-servlet</servlet-name> 37 <url-pattern>/*</url-pattern> 38 </servlet-mapping> 39 40 </web-app>
解释一下：
resteasy.scan.providers：false 是为了防止resteasy自动扫描@Provider的类
resteasy.providers:com.alibaba.fastjson.support.jaxrs.FastJsonProvider 这里指定了使用fastjson来解析json.
1 public FastJsonConfig() { 2 3 this.charset = Charset.forName("UTF-8"); 4 5 this.serializeConfig = SerializeConfig.getGlobalInstance(); 6 this.parserConfig = new ParserConfig(); 7 8 this.serializerFeatures = new SerializerFeature[0]; 9 this.serializeFilters = new SerializeFilter[0]; 10 this.features = new Feature[0]; 11 }
所以，就算在REST服务的Procuces里指定了其它编码也没用
@Path("/product")
@Produces({"application/json; charset=GBK"})
public class ProductService {
//...
}
解决办法：又到了我大OOP出场的时候
package com.cnblogs.yjmyzz; import com.alibaba.fastjson.serializer.SerializerFeature; import com.alibaba.fastjson.support.config.FastJsonConfig; import java.nio.charset.Charset; /** * Created by 菩提树下的杨过(http://yjmyzz.cnblogs.com/) on 2017/4/24. */ public class FastJsonConfigGBK extends FastJsonConfig { public FastJsonConfigGBK() { super(); setCharset(Charset.forName("GBK")); setSerializerFeatures(SerializerFeature.DisableCircularReferenceDetect); } }
从FastJsonConfig派生出一个默认编码为GBK的子类FastJsonConfigGBK，然后再来一个
package com.cnblogs.yjmyzz; import com.alibaba.fastjson.support.jaxrs.FastJsonProvider; /** * Created by 菩提树下的杨过(http://yjmyzz.cnblogs.com/) on 2017/4/24. */ public class FastJsonProviderGBK extends FastJsonProvider { public FastJsonProviderGBK() { super(); setFastJsonConfig(new FastJsonConfigGBK()); } }
最后在web.xml中，参考下面调整：
<context-param> <param-name>resteasy.providers</param-name> <param-value>com.cnblogs.yjmyzz.FastJsonProviderGBK</param-value> </context-param>
大功告成。
| Exception | HTTP Code | Description |
|---|---|---|
| ReaderException | 400 | All exceptions thrown from MessageBodyReaders are wrapped within this exception. If there is no ExceptionMapper for the wrapped exception or if the exception isn‘t a WebApplicationException, then resteasy will return a 400 code by default. |
| WriterException | 500 | All exceptions thrown from MessageBodyWriters are wrapped within this exception. If there is no ExceptionMapper for the wrapped exception or if the exception isn‘t a WebApplicationException, then resteasy will return a 400 code by default. |
| o.j.r.plugins.providers.jaxb.JAXBUnmarshalException | 400 | The JAXB providers (XML and Jettison) throw this exception on reads. They may be wrapping JAXBExceptions. This class extends ReaderException |
| o.j.r.plugins.providers.jaxb.JAXBMarshalException | 500 | The JAXB providers (XML and Jettison) throw this exception on writes. They may be wrapping JAXBExceptions. This class extends WriterException |
| ApplicationException | N/A | This exception wraps all exceptions thrown from application code. It functions much in the same way as InvocationTargetException. If there is an ExceptionMapper for wrapped exception, then that is used to handle the request. |
| Failure | N/A | Internal Resteasy. Not logged |
| LoggableFailure | N/A | Internal Resteasy error. Logged |
| DefaultOptionsMethodException | N/A | If the user invokes HTTP OPTIONS and no JAX-RS method for it, Resteasy provides a default behavior by throwing this exception |
1 package com.cnblogs.yjmyzz; 2 3 import javax.ws.rs.NotAllowedException; 4 import javax.ws.rs.core.Response; 5 import javax.ws.rs.ext.ExceptionMapper; 6 import javax.ws.rs.ext.Provider; 7 8 /** 9 * Created by yangjunming on 2017/4/26. 10 */ 11 @Provider 12 public class RestExceptionHandler implements ExceptionMapper<NotAllowedException> { 13 14 @Override 15 public Response toResponse(NotAllowedException e) { 16 Response response = Response.status(Response.Status.METHOD_NOT_ALLOWED).entity(e.getMessage()).build(); 17 response.getHeaders().add("Content-Type", "text/plain"); 18 return response; 19 } 20 }
然后在web.xml把这个加上
1 <context-param> 2 <param-name>resteasy.providers</param-name> 3 <param-value>com.cnblogs.yjmyzz.FastJsonProviderGBK,com.cnblogs.yjmyzz.RestExceptionHandler</param-value> 4 </context-param>
标签：iso instance restful 防止 efault failure pattern option charset
原文地址：http://www.cnblogs.com/yjmyzz/p/replace-jackson-with-fastjson-in-resteasy.html
