Android--将实体类转化成Json和Map的基类

package com.newair.talk.base;

import android.text.TextUtils;

import com.google.gson.Gson;

import java.lang.reflect.Field;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

/**
* 公共请求
*/
public class BaseRequest {
/**
* 将实体类转换成请求参数,json字符串形式返回
*
* @return
*/
public String getJsonParams() {
String jsonStr = new Gson().toJson(this);
if (TextUtils.isEmpty(jsonStr)) {
jsonStr = "";
}

return jsonStr;
}

/**
* 将实体类转换成请求参数,以map<k,v>形式返回
*
* @return
*/
public Map<String, String> getMapParams() {
Class<? extends BaseRequest> clazz = this.getClass();
Class<? extends Object> superclass = clazz.getSuperclass();

Field[] fields = clazz.getDeclaredFields();
Field[] superFields = superclass.getDeclaredFields();

if (fields == null || fields.length == 0) {
return Collections.emptyMap();
}

Map<String, String> params = new HashMap<String, String>();
try {
for (Field field : fields) {
field.setAccessible(true);
params.put(field.getName(), String.valueOf(field.get(this)));
}

for (Field superField : superFields) {
superField.setAccessible(true);
params.put(superField.getName(), String.valueOf(superField.get(this)));
}

} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
e.printStackTrace();
}

return params;
}
}