下面列出了怎么用com.alibaba.fastjson.parser.deserializer.FieldDeserializer的API类实例代码及写法，或者点击链接到github查看源代码。
public boolean set(Object rootObject, Object value, boolean p) {
if (rootObject == null) {
return false;
}
init();
Object currentObject = rootObject;
Object parentObject = null;
for (int i = 0; i < segments.length; ++i) {
// if (i == segments.length - 1) {
// parentObject = currentObject;
// break;
// }
//
parentObject = currentObject;
Segement segment = segments[i];
currentObject = segment.eval(this, rootObject, currentObject);
if (currentObject == null) {
Segement nextSegement = null;
if (i < segments.length - 1) {
nextSegement = segments[i + 1];
}
Object newObj = null;
if (nextSegement instanceof PropertySegement) {
JavaBeanDeserializer beanDeserializer = null;
Class<?> fieldClass = null;
if (segment instanceof PropertySegement) {
String propertyName = ((PropertySegement) segment).propertyName;
Class<?> parentClass = parentObject.getClass();
JavaBeanDeserializer parentBeanDeserializer = getJavaBeanDeserializer(parentClass);
if (parentBeanDeserializer != null) {
FieldDeserializer fieldDeserializer = parentBeanDeserializer.getFieldDeserializer(propertyName);
fieldClass = fieldDeserializer.fieldInfo.fieldClass;
beanDeserializer = getJavaBeanDeserializer(fieldClass);
}
}
if (beanDeserializer != null) {
if (beanDeserializer.beanInfo.defaultConstructor != null) {
newObj = beanDeserializer.createInstance(null, fieldClass);
} else {
return false;
}
} else {
newObj = new JSONObject();
}
} else if (nextSegement instanceof ArrayAccessSegement) {
newObj = new JSONArray();
}
if (newObj != null) {
if (segment instanceof PropertySegement) {
PropertySegement propSegement = (PropertySegement) segment;
propSegement.setValue(this, parentObject, newObj);
currentObject = newObj;
continue;
} else if (segment instanceof ArrayAccessSegement) {
ArrayAccessSegement arrayAccessSegement = (ArrayAccessSegement) segment;
arrayAccessSegement.setValue(this, parentObject, newObj);
currentObject = newObj;
continue;
}
}
break;
}
}
if (parentObject == null) {
return false;
}
Segement lastSegement = segments[segments.length - 1];
if (lastSegement instanceof PropertySegement) {
PropertySegement propertySegement = (PropertySegement) lastSegement;
propertySegement.setValue(this, parentObject, value);
return true;
}
if (lastSegement instanceof ArrayAccessSegement) {
return ((ArrayAccessSegement) lastSegement).setValue(this, parentObject, value);
}
throw new UnsupportedOperationException();
}
public boolean set(Object rootObject, Object value, boolean p) {
if (rootObject == null) {
return false;
}
init();
Object currentObject = rootObject;
Object parentObject = null;
for (int i = 0; i < segments.length; ++i) {
// if (i == segments.length - 1) {
// parentObject = currentObject;
// break;
// }
//
parentObject = currentObject;
Segment segment = segments[i];
currentObject = segment.eval(this, rootObject, currentObject);
if (currentObject == null) {
Segment nextSegment = null;
if (i < segments.length - 1) {
nextSegment = segments[i + 1];
}
Object newObj = null;
if (nextSegment instanceof PropertySegment) {
JavaBeanDeserializer beanDeserializer = null;
Class<?> fieldClass = null;
if (segment instanceof PropertySegment) {
String propertyName = ((PropertySegment) segment).propertyName;
Class<?> parentClass = parentObject.getClass();
JavaBeanDeserializer parentBeanDeserializer = getJavaBeanDeserializer(parentClass);
if (parentBeanDeserializer != null) {
FieldDeserializer fieldDeserializer = parentBeanDeserializer.getFieldDeserializer(propertyName);
fieldClass = fieldDeserializer.fieldInfo.fieldClass;
beanDeserializer = getJavaBeanDeserializer(fieldClass);
}
}
if (beanDeserializer != null) {
if (beanDeserializer.beanInfo.defaultConstructor != null) {
newObj = beanDeserializer.createInstance(null, fieldClass);
} else {
return false;
}
} else {
newObj = new JSONObject();
}
} else if (nextSegment instanceof ArrayAccessSegment) {
newObj = new JSONArray();
}
if (newObj != null) {
if (segment instanceof PropertySegment) {
PropertySegment propSegement = (PropertySegment) segment;
propSegement.setValue(this, parentObject, newObj);
currentObject = newObj;
continue;
} else if (segment instanceof ArrayAccessSegment) {
ArrayAccessSegment arrayAccessSegement = (ArrayAccessSegment) segment;
arrayAccessSegement.setValue(this, parentObject, newObj);
currentObject = newObj;
continue;
}
}
break;
}
}
if (parentObject == null) {
return false;
}
Segment lastSegment = segments[segments.length - 1];
if (lastSegment instanceof PropertySegment) {
PropertySegment propertySegment = (PropertySegment) lastSegment;
propertySegment.setValue(this, parentObject, value);
return true;
}
if (lastSegment instanceof ArrayAccessSegment) {
return ((ArrayAccessSegment) lastSegment).setValue(this, parentObject, value);
}
throw new UnsupportedOperationException();
}
public boolean set(Object rootObject, Object value, boolean p) {
if (rootObject == null) {
return false;
}
init();
Object currentObject = rootObject;
Object parentObject = null;
for (int i = 0; i < segments.length; ++i) {
// if (i == segments.length - 1) {
// parentObject = currentObject;
// break;
// }
//
parentObject = currentObject;
Segment segment = segments[i];
currentObject = segment.eval(this, rootObject, currentObject);
if (currentObject == null) {
Segment nextSegment = null;
if (i < segments.length - 1) {
nextSegment = segments[i + 1];
}
Object newObj = null;
if (nextSegment instanceof PropertySegment) {
JavaBeanDeserializer beanDeserializer = null;
Class<?> fieldClass = null;
if (segment instanceof PropertySegment) {
String propertyName = ((PropertySegment) segment).propertyName;
Class<?> parentClass = parentObject.getClass();
JavaBeanDeserializer parentBeanDeserializer = getJavaBeanDeserializer(parentClass);
if (parentBeanDeserializer != null) {
FieldDeserializer fieldDeserializer = parentBeanDeserializer.getFieldDeserializer(propertyName);
fieldClass = fieldDeserializer.fieldInfo.fieldClass;
beanDeserializer = getJavaBeanDeserializer(fieldClass);
}
}
if (beanDeserializer != null) {
if (beanDeserializer.beanInfo.defaultConstructor != null) {
newObj = beanDeserializer.createInstance(null, fieldClass);
} else {
return false;
}
} else {
newObj = new JSONObject();
}
} else if (nextSegment instanceof ArrayAccessSegment) {
newObj = new JSONArray();
}
if (newObj != null) {
if (segment instanceof PropertySegment) {
PropertySegment propSegement = (PropertySegment) segment;
propSegement.setValue(this, parentObject, newObj);
currentObject = newObj;
continue;
} else if (segment instanceof ArrayAccessSegment) {
ArrayAccessSegment arrayAccessSegement = (ArrayAccessSegment) segment;
arrayAccessSegement.setValue(this, parentObject, newObj);
currentObject = newObj;
continue;
}
}
break;
}
}
if (parentObject == null) {
return false;
}
Segment lastSegment = segments[segments.length - 1];
if (lastSegment instanceof PropertySegment) {
PropertySegment propertySegment = (PropertySegment) lastSegment;
propertySegment.setValue(this, parentObject, value);
return true;
}
if (lastSegment instanceof ArrayAccessSegment) {
return ((ArrayAccessSegment) lastSegment).setValue(this, parentObject, value);
}
throw new UnsupportedOperationException();
}