APIJSON/APIJSONORM/src/main/java/apijson/JSON.java at tmpapijson · 403f/APIJSON · GitHub

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This source code is licensed under the Apache License Version 2.0.*/

package apijson;

import com.alibaba.fastjson.JSONArray;

import com.alibaba.fastjson.JSONObject;

import com.alibaba.fastjson.parser.Feature;

import com.alibaba.fastjson.serializer.SerializerFeature;

import java.util.List;

/**阿里FastJSON封装类防止解析时异常

* @author Lemon

public class JSON {

private static final String TAG = "JSON";

/**判断json格式是否正确

* @param s

* @return

public static boolean isJsonCorrect(String s) {

//太长 Log.i(TAG, "isJsonCorrect <<<< " + s + " >>>>>>>");

if (s == null

// || s.equals("[]")

// || s.equals("{}")

|| s.equals("")

|| s.equals("[null]")

|| s.equals("{null}")

|| s.equals("null")) {

return false;

}

return true;

}

/**获取有效的json

* @param s

* @return

public static String getCorrectJson(String s) {

return getCorrectJson(s, false);

}

/**获取有效的json

* @param s

* @param isArray

* @return

public static String getCorrectJson(String s, boolean isArray) {

s = StringUtil.getTrimedString(s);

// if (isArray) {

// while (s.startsWith("\"")) {

// s = s.substring(1);

// }

// while (s.endsWith("\"")) {

// s = s.substring(0, s.length() - 1);

// }

return s;//isJsonCorrect(s) ? s : null;

}

/**

* @param json

* @return

public static Object parse(Object obj) {

int features = com.alibaba.fastjson.JSON.DEFAULT_PARSER_FEATURE;

features |= Feature.OrderedField.getMask();

try {

return com.alibaba.fastjson.JSON.parse(obj instanceof String ? (String) obj : toJSONString(obj), features);

} catch (Exception e) {

Log.i(TAG, "parse catch \n" + e.getMessage());

}

return null;

}

/**obj转JSONObject

* @param json

* @return

public static JSONObject parseObject(Object obj) {

if (obj instanceof JSONObject) {

return (JSONObject) obj;

}

return parseObject(toJSONString(obj));

}

/**json转JSONObject

* @param json

* @return

public static JSONObject parseObject(String json) {

int features = com.alibaba.fastjson.JSON.DEFAULT_PARSER_FEATURE;

features |= Feature.OrderedField.getMask();

return parseObject(json, features);

}

/**json转JSONObject

* @param json

* @param features

* @return

public static JSONObject parseObject(String json, int features) {

try {

return com.alibaba.fastjson.JSON.parseObject(getCorrectJson(json), JSONObject.class, features);

} catch (Exception e) {

Log.i(TAG, "parseObject catch \n" + e.getMessage());

}

return null;

}

/**JSONObject转实体类

* @param object

* @param clazz

* @return

public static <T> T parseObject(JSONObject object, Class<T> clazz) {

return parseObject(toJSONString(object), clazz);

}

/**json转实体类

* @param json

* @param clazz

* @return

public static <T> T parseObject(String json, Class<T> clazz) {

if (clazz == null) {

Log.e(TAG, "parseObject clazz == null >> return null;");

} else {

try {

int features = com.alibaba.fastjson.JSON.DEFAULT_PARSER_FEATURE;

features |= Feature.OrderedField.getMask();

return com.alibaba.fastjson.JSON.parseObject(getCorrectJson(json), clazz, features);

} catch (Exception e) {

Log.i(TAG, "parseObject catch \n" + e.getMessage());

}

return null;

}

/**list转JSONArray

* @param list

* @return

public static JSONArray parseArray(List<Object> list) {

return new JSONArray(list);

}

/**obj转JSONArray

* @param obj

* @return

public static JSONArray parseArray(Object obj) {

if (obj instanceof JSONArray) {

return (JSONArray) obj;

}

return parseArray(toJSONString(obj));

}

/**json转JSONArray

* @param json

* @return

public static JSONArray parseArray(String json) {

try {

return com.alibaba.fastjson.JSON.parseArray(getCorrectJson(json, true));

} catch (Exception e) {

Log.i(TAG, "parseArray catch \n" + e.getMessage());

}

return null;

}

/**JSONArray转实体类列表

* @param array

* @param clazz

* @return

public static <T> List<T> parseArray(JSONArray array, Class<T> clazz) {

return parseArray(toJSONString(array), clazz);

}

/**json转实体类列表

* @param json

* @param clazz

* @return

public static <T> List<T> parseArray(String json, Class<T> clazz) {

if (clazz == null) {

Log.e(TAG, "parseArray clazz == null >> return null;");

} else {

try {

return com.alibaba.fastjson.JSON.parseArray(getCorrectJson(json, true), clazz);

} catch (Exception e) {

Log.i(TAG, "parseArray catch \n" + e.getMessage());

}

return null;

}

/**实体类转json

* @param obj

* @return

public static String toJSONString(Object obj) {

if (obj instanceof String) {

return (String) obj;

}

try {

return com.alibaba.fastjson.JSON.toJSONString(obj);

} catch (Exception e) {

Log.e(TAG, "toJSONString catch \n" + e.getMessage());

}

return null;

}

/**实体类转json

* @param obj

* @param features

* @return

public static String toJSONString(Object obj, SerializerFeature... features) {

if (obj instanceof String) {

return (String) obj;

}

try {

return com.alibaba.fastjson.JSON.toJSONString(obj, features);

} catch (Exception e) {

Log.e(TAG, "parseArray catch \n" + e.getMessage());

}

return null;

}

/**格式化，显示更好看

* @param json

* @return

public static String format(String json) {

return format(parse(json));

}

/**格式化，显示更好看

* @param object

* @return

public static String format(Object object) {

return toJSONString(object, SerializerFeature.PrettyFormat);

}

/**判断是否为JSONObject

* @param obj instanceof String ? parseObject

* @return

public static boolean isJSONObject(Object obj) {

if (obj instanceof JSONObject) {

return true;

}

if (obj instanceof String) {

try {

JSONObject json = parseObject((String) obj);

return json != null && json.isEmpty() == false;

} catch (Exception e) {

Log.e(TAG, "isJSONObject catch \n" + e.getMessage());

}

return false;

}

/**判断是否为JSONArray

* @param obj instanceof String ? parseArray

* @return

public static boolean isJSONArray(Object obj) {

if (obj instanceof JSONArray) {

return true;

}

if (obj instanceof String) {

try {

JSONArray json = parseArray((String) obj);

return json != null && json.isEmpty() == false;

} catch (Exception e) {

Log.e(TAG, "isJSONArray catch \n" + e.getMessage());

}

return false;

}

/**判断是否为 Boolean,Number,String 中的一种

* @param obj

* @return

public static boolean isBooleanOrNumberOrString(Object obj) {

return obj instanceof Boolean || obj instanceof Number || obj instanceof String;

}

APIJSON/APIJSONORM/src/main/java/apijson/JSON.java at tmpapijson · 403f/APIJSON · GitHub

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