rabbit mq demo spring java

package com.curiousby.util; import java.io.UnsupportedEncodingException; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.springframework.amqp.core.Message; import org.springframework.amqp.core.MessageProperties; import org.springframework.amqp.support.converter.AbstractMessageConverter; import org.springframework.amqp.support.converter.MessageConversionException; import com.alibaba.fastjson.JSON; //import fe.json.FastJson; //com.curiousby.util.FastJsonMessageConverter public class FastJsonMessageConverter extends AbstractMessageConverter { private static Log log = LogFactory.getLog(FastJsonMessageConverter.class); public static final String DEFAULT_CHARSET = "UTF-8"; private volatile String defaultCharset = DEFAULT_CHARSET; public FastJsonMessageConverter() { super(); } public void setDefaultCharset(String defaultCharset) { this.defaultCharset = (defaultCharset != null) ? defaultCharset : DEFAULT_CHARSET; } public Object fromMessage(Message message) throws MessageConversionException { return null; } public <T> T fromMessage(Message message,T t) { String json = ""; try { json = new String(message.getBody(),defaultCharset); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } return (T) JSON.parseObject(json, t.getClass()); //(T) FastJson.fromJson(json, t.getClass()); } protected Message createMessage(Object objectToConvert, MessageProperties messageProperties) throws MessageConversionException { byte[] bytes = null; try { String jsonString = JSON.toJSONString(objectToConvert); //FastJson.toJson(objectToConvert); bytes = jsonString.getBytes(this.defaultCharset); } catch (UnsupportedEncodingException e) { throw new MessageConversionException( "Failed to convert Message content", e); } messageProperties.setContentType(MessageProperties.CONTENT_TYPE_JSON); messageProperties.setContentEncoding(this.defaultCharset); if (bytes != null) { messageProperties.setContentLength(bytes.length); } return new Message(bytes, messageProperties); } }