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308 lines (279 loc) · 8.69 KB
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package com.fhzz.core.util;
import java.lang.reflect.Array;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.Map.Entry;
public class JsonUtil {
private Map<String, Object> jsonMap = new HashMap<String, Object>();
private static SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
/**
* 过滤的属性名
*/
private String[] filters = null;
public JsonUtil() {
}
public JsonUtil(String[] filters) {
this.filters = filters;
}
public void clear() {
jsonMap.clear();
}
public Map<String, Object> put(String key, Object value) {
jsonMap.put(key, value);
return jsonMap;
}
private static boolean isNoQuote(Object value) {
return (value instanceof Integer || value instanceof Boolean
|| value instanceof Double || value instanceof Float
|| value instanceof Short || value instanceof Long || value instanceof Byte);
}
private static boolean isQuote(Object value) {
return (value instanceof String || value instanceof Character);
}
private static boolean isContains(String fieldName,String[] filters) {
if (null == fieldName || null == filters || filters.length == 0)
return false;
for (int i = 0; i < filters.length; i++)
if (fieldName.equals(filters[i]))
return true;
return false;
}
@SuppressWarnings("unchecked")
@Override
public String toString() {
StringBuffer sb = new StringBuffer();
sb.append("{");
Set<Entry<String, Object>> set = jsonMap.entrySet();
for (Entry<String, Object> entry : set) {
Object value = entry.getValue();
if (value == null) {
continue;
}
sb.append("\"").append(String.valueOf(entry.getKey())).append("\":");
if (value instanceof JsonUtil) {
sb.append(value.toString());
} else if (isNoQuote(value)) {
sb.append(value);
} else if (value instanceof Date) {
sb.append("\"").append(formatter.format(value)).append("\"");
} else if (isQuote(value)) {
sb.append("\"").append(formateJson(value.toString())).append("\"");
} else if (value.getClass().isArray()) {
sb.append(ArrayToStr(value));
} else if (value instanceof Map) {
sb.append(fromObject((Map<String, Object>) value).toString());
} else if (value instanceof List) {
sb.append(ListToStr((List<Object>) value,filters));
} else if(value instanceof Integer){
sb.append(value);
}else {
sb.append(fromObject(value).toString());
}
sb.append(",");
}
int len = sb.length();
if (len > 1) {
sb.delete(len - 1, len);
}
sb.append("}");
return sb.toString();
}
public static String ArrayToStr(Object array) {
if (!array.getClass().isArray())
return "[]";
StringBuffer sb = new StringBuffer();
sb.append("[");
int len = Array.getLength(array);
Object v = null;
for (int i = 0; i < len; i++) {
v = Array.get(array, i);
if (v instanceof Date) {
sb.append("\"").append(formatter.format(v)).append("\"").append(
",");
} else if (isQuote(v)) {
sb.append("\"").append(v).append("\"").append(",");
} else if (isNoQuote(v)) {
sb.append(v).append(",");
} else {
sb.append(fromObject(v)).append(",");
}
}
len = sb.length();
if (len > 1)
sb.delete(len - 1, len);
sb.append("]");
return sb.toString();
}
@SuppressWarnings("unchecked")
public static String ListToStr(List<? extends Object> list,String[] filters) {
if (list == null)
return null;
StringBuffer sb = new StringBuffer();
sb.append("[");
Object value = null;
for (java.util.Iterator it = list.iterator(); it.hasNext();) {
value = it.next();
if (value instanceof Map) {
sb.append(fromObject((Map) value).toString()).append(",");
} else if (isNoQuote(value)) {
sb.append(value).append(",");
} else if (isQuote(value)) {
sb.append("\"").append(formateJson(value.toString())).append("\"").append(",");
} else {
sb.append(fromObject(value,filters).toString()).append(",");
}
}
int len = sb.length();
if (len > 1)
sb.delete(len - 1, len);
sb.append("]");
return sb.toString();
}
public static String ListToStr(List<? extends Object> list) {
return ListToStr(list,null);
}
/**
* Java Bean 转成Json
* @param bean
* @param filters 过滤部分属性
* @return
*/
@SuppressWarnings("unchecked")
public static JsonUtil fromObject(Object bean, String[] filters) {
JsonUtil json = new JsonUtil();
if (bean == null)
return json;
Class cls = bean.getClass();
Field[] fs = cls.getDeclaredFields();
Object value = null;
String fieldName = null;
Method method = null;
int len = fs.length;
for (int i = 0; i < len; i++) {
fieldName = fs[i].getName();
if (isContains(fieldName, filters))
continue;
try {
method = cls.getMethod(getGetter(fieldName), (Class[]) null);
value = method.invoke(bean, (Object[]) null);
} catch (Exception e) {
// System.out.println(method.getName());
// e.printStackTrace();
continue;
}
json.put(fieldName, value);
}
return json;
}
public static JsonUtil fromObject(Object bean) {
return fromObject(bean,null);
}
public static JsonUtil fromObject(Map<String, Object> map) {
JsonUtil json = new JsonUtil();
if (map == null)
return json;
json.getMap().putAll(map);
return json;
}
private static String getGetter(String property) {
return "get" + property.substring(0, 1).toUpperCase()
+ property.substring(1, property.length());
}
public Map<String, Object> getMap() {
return this.jsonMap;
}
public static Map<String,String> decodeJSONtoMap(String json){
//{"method":"getCmuCuRegister","ip":"10.10.3.222","port":12345,"id":"11112345345345456"};
Map<String,String> map = new HashMap<String,String>();
if (json.startsWith("{") && json.endsWith("}")) {
json = json.substring(1,json.length() - 1);
String[] allNodes = json.split(",");
for (String node : allNodes) {
String[] nd = node.split(":");
// 以下四行代码 added by LuoChao 2013.02.27
String key = nd[0];
//处理这两类情况：1、“2013-02-27 10:43:24”；2、；http://127.0.0.1:8080/nms/index.do
String value = (nd.length == 4) ? (nd[1] + ":" + nd[2] + ":" + nd[3]) : nd[1];
key = key.replace("\"", "").replace("\"", "").replace("\'", "").replace("\'", "");
value = value.replace("\"", "").replace("\"", "").replace("\'", "").replace("\'", "");
map.put(key, value);
}
} else {
throw new RuntimeException("json formate error...");
}
return map;
}
/**
* 处理Json 中的特殊字符 比如回车换行 双引号等（单引号不作处理）
* @param s
* @return
*/
private static String formateJson(String s) {
StringBuffer sb = new StringBuffer();
for (int i = 0; i < s.length(); i++) {
char c = s.charAt(i);
switch (c) {
case'\"': //双引号
sb.append("\\\"");
break;
case'/': //左斜杠
sb.append("\\/");
break;
case'\b': //退格
sb.append("\\b");
break;
case'\f': //走纸换页
sb.append("\\f");
break;
case'\n':
sb.append("\\n");//换行
break;
case'\r': //回车
sb.append("\\r");
break;
case'\t': //横向跳格
sb.append("\\t");
break;
default:
sb.append(c);
}
}
return sb.toString();
}
/**
* json(json每个元素都是一个新的json)转换为jsonToJsonArray(array的每一个元素都是一个json) added by LuoChao 2013.2.28
*/
public static String[] jsonToJsonArray(String json) {
try {
String[] jsonList = json.split("\\},\\{");
if (jsonList.length > 1) {
for (int i = 0; i < jsonList.length; i++) {
if (i == 0) {
jsonList[i] = jsonList[i].substring(1, jsonList[i]
.length());
jsonList[i] = jsonList[i] + "}";
} else if (i == (jsonList.length - 1)) {
jsonList[i] = jsonList[i].substring(0, jsonList[i]
.length() - 1);
jsonList[i] = "{" + jsonList[i];
} else if (i != 0 && i != (jsonList.length - 1)) {
jsonList[i] = "{" + jsonList[i] + "}";
}
}
} else if (jsonList.length == 1) {
jsonList[0] = jsonList[0]
.substring(1, jsonList[0].length() - 1);
}
return jsonList;
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
}