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gyf
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增加一些
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+293
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4 files changed

+293
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‎toolutils4a/src/main/java/com/gyf/toolutils4a/JsonUtils.java

+209
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,209 @@
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package com.gyf.toolutils4a;
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import org.json.JSONArray;
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import org.json.JSONException;
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import org.json.JSONObject;
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import org.json.JSONTokener;
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import java.lang.reflect.Array;
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import java.util.Collection;
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import java.util.Map;
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/**
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* Msg: JSON处理类 1、Map转为JSONObject 2、集合转换为JSONArray
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* Created by gyf on 2016/11/15.
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*/
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public class JsonUtils {
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/**
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* Map转为JSON对象
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*
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* @param data Map数据
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* @return
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*/
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public static JSONObject mapToJson(Map<?, ?> data) {
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JSONObject object = new JSONObject();
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for (Map.Entry<?, ?> entry : data.entrySet()) {
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String key = (String) entry.getKey();
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if (key == null) {
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throw new NullPointerException("key == null");
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}
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try {
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object.put(key, wrap(entry.getValue()));
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} catch (JSONException e) {
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e.printStackTrace();
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}
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}
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return object;
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}
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/**
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* 集合转换为JSONArray
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*
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* @param data 集合对象
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* @return
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*/
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public static JSONArray collectionToJson(Collection<?> data) {
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JSONArray jsonArray = new JSONArray();
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if (data != null) {
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for (Object aData : data) {
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jsonArray.put(wrap(aData));
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}
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}
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return jsonArray;
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}
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/**
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* Object对象转换为JSONArray
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*
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* @param data Object对象
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* @return
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* @throws JSONException Object非数组时，抛出异常
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*/
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public static JSONArray arrayToJson(Object data) throws JSONException {
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if (!data.getClass().isArray()) {
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throw new JSONException("Not a primitive data: " + data.getClass());
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}
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final int length = Array.getLength(data);
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JSONArray jsonArray = new JSONArray();
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for (int i = 0; i < length; ++i) {
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jsonArray.put(wrap(Array.get(data, i)));
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}
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return jsonArray;
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}
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private static Object wrap(Object o) {
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if (o == null) {
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return null;
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}
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if (o instanceof JSONArray || o instanceof JSONObject) {
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return o;
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}
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try {
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if (o instanceof Collection) {
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return collectionToJson((Collection<?>) o);
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} else if (o.getClass().isArray()) {
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return arrayToJson(o);
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}
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if (o instanceof Map) {
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return mapToJson((Map<?, ?>) o);
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}
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if (o instanceof Boolean || o instanceof Byte || o instanceof Character || o instanceof Double || o instanceof Float || o instanceof Integer || o instanceof Long
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|| o instanceof Short || o instanceof String) {
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return o;
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}
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if (o.getClass().getPackage().getName().startsWith("java.")) {
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return o.toString();
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}
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} catch (Exception ignored) {
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}
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return null;
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}
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/**
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* 根据json字符串生成JSONObject对象
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*
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* @param json json字符串
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* @return 返回JSONObject对象或者空（null）
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*/
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public static JSONObject initJSONObject(String json) {
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JSONObject jsonObject = null;
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try {
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JSONTokener jsonParser = new JSONTokener(json);
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jsonObject = (JSONObject) jsonParser.nextValue();
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} catch (Exception e) {
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} finally {
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return jsonObject;
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}
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}
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/**
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* 根据Key值相对应的Value值
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*
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* @param jsonObject Json对象
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* @param key 健值
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* @return 返回value值或空串（""）
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*/
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public static String getString(JSONObject jsonObject, String key) {
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String value = "";
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try {
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value = jsonObject.getString(key);
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} catch (Exception e) {
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}
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return value;
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}
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/**
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* 根据Key值相对应的Value值
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*
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* @param jsonObject Json对象
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* @param key 健值
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* @return 返回value值或-1
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*/
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public static int getInt(JSONObject jsonObject, String key) {
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int value = -1;
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try {
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value = jsonObject.getInt(key);
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} catch (Exception e) {
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}
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return value;
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}
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/**
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* 根据Key值相对应的Value值
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*
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* @param jsonObject Json对象
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* @param key 健值
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* @return 返回value值或-1
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*/
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public static long getLong(JSONObject jsonObject, String key) {
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long value = -1;
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try {
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value = jsonObject.getLong(key);
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} catch (Exception e) {
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}
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return value;
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}
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/**
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* 根据Key值相对应的Value值
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*
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* @param jsonObject Json对象
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* @param key 健值
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* @return 返回value值或null
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*/
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public static JSONArray getJSONArray(JSONObject jsonObject, String key) {
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JSONArray arrays = null;
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try {
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arrays = jsonObject.getJSONArray(key);
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} catch (Exception e) {
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}
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return arrays;
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}
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/**
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* 根据Key值相对应的Value值
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*
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* @param jsonArray JsonArray对象
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* @param index 索引
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* @return 返回value值或null
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*/
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public static JSONObject getJSONObject(JSONArray jsonArray, int index) {
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JSONObject jsonObject = null;
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try {
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jsonObject = jsonArray.getJSONObject(index);
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} catch (Exception e) {
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}
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return jsonObject;
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}
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}

‎toolutils4a/src/main/java/com/gyf/toolutils4a/MathUtil.java

+53
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@@ -0,0 +1,53 @@
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package com.gyf.toolutils4a;
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import java.math.BigDecimal;
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/**
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* Created by gyf on 2016/11/15.
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*/
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public class MathUtil {
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/**
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* 字符串转Integer
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* @param numStr 字符串数字
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* @return int.若为null表示字符串为空或者转换错误
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*/
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public static Integer str2Integer(String numStr){
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if(StringUtil.isEmpty(numStr)){
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return null;
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}else {
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try{
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return Integer.parseInt(numStr);
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}catch (Exception e){
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return null;
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}
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}
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}
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/**
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* 判断数值是否相等
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* @param num 数值
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* @param numStr 字符串数值
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* @return boolean:true相等，false否
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*/
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public static boolean numEqualsNumstr(int num, String numStr) {
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Integer num2 = str2Integer(numStr);
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return null != num2 && num == num2;
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}
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/**
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* 获取四舍五入的小数
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* @param num 数字字符串
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* @param scale 保留小数位
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*/
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public static String getScaleData(String num, int scale){
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if(StringUtil.isEmpty(num)){
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num= "0";
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}
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BigDecimal mData = new BigDecimal(num)
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.setScale(scale, BigDecimal.ROUND_HALF_UP); //四舍五入，保留两位小数
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return ""+mData;
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}
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}

‎toolutils4a/src/main/java/com/gyf/toolutils4a/StringUtil.java

+24
Original file line numberDiff line numberDiff line change
@@ -519,6 +519,12 @@ public static boolean isPhone(String str) {
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return b;
520520
}
521521

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/**
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* 判断是否为纯数字
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*
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* @param str the str
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* @return the boolean
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*/
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public static boolean isNumber(String str) {
523529
Pattern pattern = Pattern.compile("[0-9]*");
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Matcher isNum = pattern.matcher(str);
@@ -602,6 +608,24 @@ public static boolean isConSpeCharacters(String string) {
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return true;
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}
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/**
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* 生成6位随机数.
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*
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* @return the int
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*/
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public static String randomFor6(){
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return String.valueOf((int) ((Math.random()*9+1)*100000));
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}
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/**
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* 生成4位随机数.
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*
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* @return the int
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*/
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public static String randomFor4(){
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return String.valueOf((int) ((Math.random()*9+1)*1000));
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}
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605629
private static boolean isChinese(char c) {
606630
Character.UnicodeBlock ub = Character.UnicodeBlock.of(c);
607631
if (ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS || ub == Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS

‎toolutils4a/src/test/java/com/gyf/toolutils4a/ExampleUnitTest.java

+7-1
Original file line numberDiff line numberDiff line change
@@ -12,6 +12,12 @@
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public class ExampleUnitTest {
1313
@Test
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public void addition_isCorrect() throws Exception {
15-
assertEquals(4, 2 + 2);
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int i = 0;
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while (i < 10000){
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i++;
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System.out.println(StringUtil.randomFor6());
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}
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//assertEquals(4, 2 + 2);
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}
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}

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