Object 和Json字符串互转

引入依赖的jar包

<!-- jackson -->
<dependency><groupId>com.fasterxml.jackson.datatype</groupId><artifactId>jackson-datatype-guava</artifactId><version>2.5.3</version>
</dependency>
<dependency><groupId>org.codehaus.jackson</groupId><artifactId>jackson-core-asl</artifactId><version>1.9.13</version>
</dependency>
<dependency><groupId>org.codehaus.jackson</groupId><artifactId>jackson-mapper-asl</artifactId><version>1.9.13</version>
</dependency>

Object 和Json字符串互转工具类

package com.next.util;import lombok.extern.slf4j.Slf4j;
import org.codehaus.jackson.map.DeserializationConfig;
import org.codehaus.jackson.map.ObjectMapper;
import org.codehaus.jackson.map.SerializationConfig;
import org.codehaus.jackson.map.annotate.JsonSerialize;
import org.codehaus.jackson.map.ser.impl.SimpleFilterProvider;
import org.codehaus.jackson.type.TypeReference;@Slf4j
public class JsonMapper {private static ObjectMapper objectMapper = new ObjectMapper();static {// configobjectMapper.disable(DeserializationConfig.Feature.FAIL_ON_UNKNOWN_PROPERTIES);objectMapper.configure(SerializationConfig.Feature.FAIL_ON_EMPTY_BEANS, false);objectMapper.setFilters(new SimpleFilterProvider().setFailOnUnknownId(false));objectMapper.setSerializationInclusion(JsonSerialize.Inclusion.NON_EMPTY);}public static <T> String obj2String(T src) {if (src == null) {return null;}try {return src instanceof String ? (String) src : objectMapper.writeValueAsString(src);} catch (Exception e) {log.warn("parse object to String exception, error:{}", e);return null;}}public static <T> T string2Obj(String src, TypeReference<T> typeReference) {if (src == null || typeReference == null) {return null;}try {return (T) (typeReference.getType().equals(String.class) ? src : objectMapper.readValue(src, typeReference));} catch (Exception e) {log.warn("parse String to Object exception, String:{}, TypeReference<T>:{}, error:{}", src, typeReference.getType(), e);return null;}}
}