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代码是间接复制过去,格局比拟乱大家对付看一下吧
需要要保留字段原样,可fastjson默认是获取get办法的字段并把首字母转成小写。
解决方案:
1、增加实例化配置
JSON.toJSONString(须要实例化的对象,new SerializeConfig(true)) //设置true通过字段作为json key,默认为flase
注:代码省略 大抵在1821行
package com.alibaba.fastjson.util;
public class TypeUtils{
public static SerializeBeanInfo buildBeanInfo(Class<?> beanType //
, Map<String,String> aliasMap //
, PropertyNamingStrategy propertyNamingStrategy //
, boolean fieldBased //
){
List<FieldInfo> fieldInfoList = fieldBased //通过SerializeConfig办法设置fieldBased这个字段影响了如何获取字段
? computeGettersWithFieldBase(beanType, aliasMap, false, propertyNamingStrategy)
: computeGetters(beanType, jsonType, aliasMap, fieldCacheMap, false, propertyNamingStrategy);
}
}
computeGettersWithFieldBase 办法大略是这样
Field[] fields = currentClass.getDeclaredFields();
computeFields(currentClass, aliasMap, propertyNamingStrategy, fieldInfoMap, fields); //有注解优先获取注解字段
2、字段加上@JSONField(name=”字段名称”)
computeGetters办法是通过过来get办法作为json的key
注:代码省略 大抵在2015行
public static List<FieldInfo> computeGetters(Class<?> clazz, //
JSONType jsonType, //
Map<String,String> aliasMap, //
Map<String,Field> fieldCacheMap, //
boolean sorted, //
PropertyNamingStrategy propertyNamingStrategy //
){
char c3 = methodName.charAt(3);
String propertyName;
Field field = null;
if(Character.isUpperCase(c3) //
|| c3 > 512 // for unicode method name
){
if(compatibleWithJavaBean){
propertyName = decapitalize(methodName.substring(3));//去掉 ‘get’ 并转首字母小写
}
然而加上@JSONField注解会优先应用注解字段为key
注:大抵在2066行 同上办法
JSONField fieldAnnotation = null;
if(field != null){
fieldAnnotation = TypeUtils.getAnnotation(field, JSONField.class);
if(fieldAnnotation != null){
if(!fieldAnnotation.serialize()){
continue;
}
ordinal = fieldAnnotation.ordinal();
serialzeFeatures = SerializerFeature.of(fieldAnnotation.serialzeFeatures());
parserFeatures = Feature.of(fieldAnnotation.parseFeatures());
if(fieldAnnotation.name().length() != 0){
fieldAnnotationAndNameExists = true;
propertyName = fieldAnnotation.name(); //获取注解的name属性
if(aliasMap != null){
propertyName = aliasMap.get(propertyName);
if(propertyName == null){
continue;
}
}
}
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