<span style="font-size:14px;">package com.gamesvr.framework.util;
import java.beans.IntrospectionException;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.*;
import java.text.SimpleDateFormat;
import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
import net.sf.json.JsonConfig;
import net.sf.json.processors.JsonValueProcessor;
import net.sf.json.xml.XMLSerializer;
/**
* @ClassName：JSONUtil
* @ClassRemark：
* @Author：txxs
* @UpdateRemark：
* @version:
*/
public class JSONUtil {
/**
* object2JSONString Bean List Map等对象转JsonString
*
* @param Object obj(JavaBean List Map Array ...)
* @return JsonString
*/
public static String object2JSONString(Object obj) {
StringBuilder json = new StringBuilder();
if (obj == null) {
json.append("\"\"");
} else if (obj instanceof String || obj instanceof Integer || obj instanceof Float || obj instanceof Boolean
|| obj instanceof Short || obj instanceof Double || obj instanceof Long || obj instanceof BigDecimal
|| obj instanceof BigInteger || obj instanceof Byte) {
json.append("\"").append(string2JSONString(obj.toString())).append("\"");
} else if (obj instanceof Object[]) {
json.append(array2JSONString((Object[]) obj));
} else if (obj instanceof List) {
json.append(list2JSONString((List<?>) obj));
} else if (obj instanceof Map) {
json.append(map2JSONString((Map<?, ?>) obj));
} else if (obj instanceof Set) {
json.append(set2JSONString((Set<?>) obj));
} else {
json.append(bean2JSONString(obj));
}
return json.toString();
}
/**
* bean2JSONString Bean转换JsonString
*
* @param Object bean
* @return JsonString
*/
public static String bean2JSONString(Object bean) {
StringBuilder json = new StringBuilder();
json.append("{");
PropertyDescriptor[] props = null;
try {
props = Introspector.getBeanInfo(bean.getClass(), Object.class).getPropertyDescriptors();
} catch (IntrospectionException e) {
}
if (props != null) {
for (int i = 0; i < props.length; i++) {
try {
String name = object2JSONString(props[i].getName());
String value = object2JSONString(props[i].getReadMethod().invoke(bean));
json.append(name);
json.append(":");
json.append(value);
json.append(",");
} catch (Exception e) {
}
}
json.setCharAt(json.length() - 1, '}');
} else {
json.append("}");
}
return json.toString();
}
/**
* list2JSONString List转换JsonString
*
* @param List list
* @return JsonString
*/
public static String list2JSONString(List<?> list) {
StringBuilder json = new StringBuilder();
json.append("[");
if (list != null && list.size() > 0) {
for (Object obj : list) {
json.append(object2JSONString(obj));
json.append(",");
}
json.setCharAt(json.length() - 1, ']');
} else {
json.append("]");
}
return json.toString();
}
/**
* array2JSONString Array转换JsonString
*
* @param Object[] array
* @return JsonString
*/
public static String array2JSONString(Object[] array) {
StringBuilder json = new StringBuilder();
json.append("[");
if (array != null && array.length > 0) {
for (Object obj : array) {
json.append(object2JSONString(obj));
json.append(",");
}
json.setCharAt(json.length() - 1, ']');
} else {
json.append("]");
}
return json.toString();
}
/**
* map2JSONString Map转换JsonString
*
* @param Map map
* @return JsonString
*/
public static String map2JSONString(Map<?, ?> map) {
StringBuilder json = new StringBuilder();
json.append("{");
if (map != null && map.size() > 0) {
for (Object key : map.keySet()) {
json.append(object2JSONString(key));
json.append(":");
json.append(object2JSONString(map.get(key)));
json.append(",");
}
json.setCharAt(json.length() - 1, '}');
} else {
json.append("}");
}
return json.toString();
}
/**
* set2JSONString Set转换JsonString
*
* @param Set set
* @return JsonString
*/
public static String set2JSONString(Set<?> set) {
StringBuilder json = new StringBuilder();
json.append("[");
if (set != null && set.size() > 0) {
for (Object obj : set) {
json.append(object2JSONString(obj));
json.append(",");
}
json.setCharAt(json.length() - 1, ']');
} else {
json.append("]");
}
return json.toString();
}
/**
* string2JSONString String转换JsonString
*
* @param String s
* @return JsonString
* @Exception（异常对象）
*/
public static String string2JSONString(String s) {
if (s == null)
return "";
StringBuilder sb = new StringBuilder();
for (int i = 0; i < s.length(); i++) {
char ch = s.charAt(i);
switch (ch) {
case '"':
sb.append("\\\"");
break;
case '\\':
sb.append("\\\\");
break;
case '\b':
sb.append("\\b");
break;
case '\f':
sb.append("\\f");
break;
case '\n':
sb.append("\\n");
break;
case '\r':
sb.append("\\r");
break;
case '\t':
sb.append("\\t");
break;
case '/':
sb.append("\\/");
break;
default:
if (ch >= '\u0000' && ch <= '\u001F') {
String ss = Integer.toHexString(ch);
sb.append("\\u");
for (int k = 0; k < 4 - ss.length(); k++) {
sb.append('0');
}
sb.append(ss.toUpperCase());
} else {
sb.append(ch);
}
}
}
return sb.toString();
}
/**
* jsonString2Bean 从json串转换成实体对象
*
* @param jsonObjStr e.g. {'name':'get','dateAttr':'2009-11-12'}
* @param clazz Person.class
* @return
*/
public static Object jsonString2Bean(String jsonStr, Class clazz) {
return JSONObject.toBean(JSONObject.fromObject(jsonStr), clazz);
}
/**
* jsonString2Bean 从json串转换成实体对象，并且实体集合属性存有另外实体Bean
*
* @param jsonStr e.g. {'data':[{'name':'get'},{'name':'set'}]}
* @param clazz e.g. MyBean.class
* @param classMap e.g. classMap.put("data", Person.class)
* @return Object
*/
public static Object jsonString2Bean(String jsonStr, Class clazz, Map classMap) {
return JSONObject.toBean(JSONObject.fromObject(jsonStr), clazz, classMap);
}
/**
* jsonString2Array 把一个json数组串转换成普通数组
*
* @param jsonArrStr e.g. ['get',1,true,null]
* @return Object[]
*/
public static Object[] jsonString2Array(String jsonArrStr) {
return JSONArray.fromObject(jsonArrStr).toArray();
}
/**
* jsonString2List 把一个json数组串转换成实体数组
*
* @param jsonArrStr e.g. [{'name':'get'},{'name':'set'}]
* @param clazz e.g. Person.class
* @return Object[]
*/
public static Object[] jsonString2List(String jsonArrStr, Class clazz) {
JSONArray jsonArr = JSONArray.fromObject(jsonArrStr);
Object[] objArr = new Object[jsonArr.size()];
for (int i = 0; i < jsonArr.size(); i++) {
objArr[i] = JSONObject.toBean(jsonArr.getJSONObject(i), clazz);
}
return objArr;
}
/**
* jsonString2List 把一个json数组串转换成实体数组，且数组元素的属性含有另外实例Bean
*
* @param jsonArrStr e.g. [{'data':[{'name':'get'}]},{'data':[{'name':'set'}]}]
* @param clazz e.g. MyBean.class
* @param classMap e.g. classMap.put("data", Person.class)
* @return Object[]
*/
public static Object[] jsonString2List(String jsonArrStr, Class clazz, Map classMap) {
JSONArray array = JSONArray.fromObject(jsonArrStr);
Object[] obj = new Object[array.size()];
for (int i = 0; i < array.size(); i++) {
JSONObject jsonObject = array.getJSONObject(i);
obj[i] = JSONObject.toBean(jsonObject, clazz, classMap);
}
return obj;
}
/**
* jsonString2List 把一个json数组串转换成存放普通类型元素的集合
*
* @param jsonArrStr e.g. ['get',1,true,null]
* @return List
*/
public static List jsonString2List(String jsonArrStr) {
JSONArray jsonArr = JSONArray.fromObject(jsonArrStr);
List list = new ArrayList();
for (int i = 0; i < jsonArr.size(); i++) {
list.add(jsonArr.get(i));
}
return list;
}
/**
* jsonString2ListBean 把一个json数组串转换成集合，且集合里存放的为实例Bean
*
* @param jsonArrStr e.g. [{'name':'get'},{'name':'set'}]
* @param clazz
* @return List
*/
public static List jsonString2ListBean(String jsonArrStr, Class clazz) {
JSONArray jsonArr = JSONArray.fromObject(jsonArrStr);
List list = new ArrayList();
for (int i = 0; i < jsonArr.size(); i++) {
list.add(JSONObject.toBean(jsonArr.getJSONObject(i), clazz));
}
return list;
}
/**
* jsonString2ListBean 把一个json数组串转换成集合，且集合里的对象的属性含有另外实例Bean
*
* @param jsonArrStr e.g. [{'data':[{'name':'get'}]},{'data':[{'name':'set'}]}]
* @param clazz e.g. MyBean.class
* @param classMap e.g. classMap.put("data", Person.class)
* @return List
*/
public static List jsonString2ListBean(String jsonArrStr, Class clazz, Map classMap) {
JSONArray jsonArr = JSONArray.fromObject(jsonArrStr);
List list = new ArrayList();
for (int i = 0; i < jsonArr.size(); i++) {
list.add(JSONObject.toBean(jsonArr.getJSONObject(i), clazz, classMap));
}
return list;
}
/**
* jsonString2Map 把json对象串转换成map对象
*
* @param jsonStr e.g. {'name':'get','int':1,'double',1.1,'null':null}
* @return Map
*/
public static Map jsonString2Map(String jsonStr) {
JSONObject jsonObject = JSONObject.fromObject(jsonStr);
Map map = new HashMap();
for (Iterator iter = jsonObject.keys(); iter.hasNext(); ) {
String key = (String) iter.next();
map.put(key, jsonObject.get(key));
}
return map;
}
/**
* jsonString2MapBean 把json对象串转换成map对象，且map对象里存放的为其他实体Bean
*
* @param jsonStr e.g. {'data1':{'name':'get'},'data2':{'name':'set'}}
* @param clazz e.g. Person.class
* @return Map
*/
public static Map jsonString2MapBean(String jsonStr, Class clazz) {
JSONObject jsonObject = JSONObject.fromObject(jsonStr);
Map map = new HashMap();
for (Iterator iter = jsonObject.keys(); iter.hasNext(); ) {
String key = (String) iter.next();
map.put(key, JSONObject.toBean(jsonObject.getJSONObject(key), clazz));
}
return map;
}
/**
* jsonString2MapBean 把json对象串转换成map对象，且map对象里存放的其他实体Bean还含有另外实体Bean
*
* @param jsonStr e.g. {'mybean':{'data':[{'name':'get'}]}}
* @param clazz e.g. MyBean.class
* @param classMap e.g. classMap.put("data", Person.class)
* @return Map
*/
public static Map jsonString2MapBean(String jsonStr, Class clazz, Map classMap) {
JSONObject jsonObject = JSONObject.fromObject(jsonStr);
Map map = new HashMap();
for (Iterator iter = jsonObject.keys(); iter.hasNext(); ) {
String key = (String) iter.next();
map.put(key, JSONObject.toBean(jsonObject.getJSONObject(key), clazz, classMap));
}
return map;
}
/**
* object2JsonString 把实体Bean、Map对象、数组、列表集合转换成Json串
*
* @param obj
* @return
* @throws Exception String
*/
public static String object2JsonString(Object obj) {
String jsonStr = null;
//Json配置
JsonConfig jsonCfg = new JsonConfig();
//注册日期处理器
jsonCfg.registerJsonValueProcessor(java.util.Date.class, new JsonDateValueProcessor("yyyyMMdd_HHmmss"));
if (obj == null) {
return "{}";
}
if (obj instanceof Collection || obj instanceof Object[]) {
jsonStr = JSONArray.fromObject(obj, jsonCfg).toString();
} else {
jsonStr = JSONObject.fromObject(obj, jsonCfg).toString();
}
return jsonStr;
}
/**
* object2XML 把json串、数组、集合(collection map)、实体Bean转换成XML
* XMLSerializer API：
* http://json-lib.sourceforge.net/apidocs/net/sf/json/xml/XMLSerializer.html
* 具体实例请参考：
* http://json-lib.sourceforge.net/xref-test/net/sf/json/xml/TestXMLSerializer_writes.html
* http://json-lib.sourceforge.net/xref-test/net/sf/json/xml/TestXMLSerializer_writes.html
*
* @param obj
* @return
* @throws Exception String
*/
public static String object2XML(Object obj) {
XMLSerializer xmlSerial = new XMLSerializer();
//Json配置
JsonConfig jsonCfg = new JsonConfig();
//注册日期处理器
jsonCfg.registerJsonValueProcessor(java.util.Date.class, new JsonDateValueProcessor("yyyyMMdd_HHmmss"));
if ((String.class.isInstance(obj) && String.valueOf(obj).startsWith("[")) || obj.getClass().isArray()
|| Collection.class.isInstance(obj)) {
JSONArray jsonArr = JSONArray.fromObject(obj, jsonCfg);
return xmlSerial.write(jsonArr);
} else {
JSONObject jsonObj = JSONObject.fromObject(obj, jsonCfg);
return xmlSerial.write(jsonObj);
}
}
/**
* xml2JsonString 从XML转json串
*
* @param xml
* @return String
*/
public static String xml2JsonString(String xml) {
XMLSerializer xmlSerial = new XMLSerializer();
return String.valueOf(xmlSerial.read(xml));
}
}
/**
* @ProjectName：srp
* @ClassName：JsonDateValueProcessor Json日期处理器
* @ClassRemark：
* @Author：T08388
* @UpdateRemark：
* @version: 1
*/
class JsonDateValueProcessor implements JsonValueProcessor {
private String format = "yyyyMMdd_HHmmss";
public JsonDateValueProcessor() {
}
public JsonDateValueProcessor(String format) {
this.format = format;
}
public Object processArrayValue(Object value, JsonConfig jsonConfig) {
return process(value, jsonConfig);
}
public Object processObjectValue(String key, Object value, JsonConfig jsonConfig) {
return process(value, jsonConfig);
}
private Object process(Object value, JsonConfig jsonConfig) {
if (value instanceof Date) {
String str = new SimpleDateFormat(format).format((Date) value);
return str;
}
return value == null ? null : value.toString();
}
public String getFormat() {
return format;
}
public void setFormat(String format) {
this.format = format;
}
}</span>
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时间： 2024-10-24 15:39:53