package com.cjonline.foundation.util;
import java.lang.reflect.Array;
import java.util.Date;
import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
import net.sf.json.JsonConfig;
import net.sf.json.util.PropertyFilter;
@SuppressWarnings("all")
public class JsonToJavaUtil {
/**
* 将json转成成javaBean对象
* @param <T> 返回类型
* @param json 字符串
* @param clazz 需要转换成的类
* @return
*/
public static <T> T[] jsonToJavaBean(String json,Class<T> clazz) {
if(json==null || !json.startsWith("[") || !json.endsWith("]") ){
throw new RuntimeException("JSONArray 必须以'['开头,以']'结尾");
}
JSONArray array = JSONArray.fromObject(json); //先读取字符串数组
Object[] objs = array.toArray(); //转成对像数组
if(objs.length>0){
JsonConfig config = new JsonConfig();
config.registerJsonValueProcessor(Date.class,new JsonDateValueProcessor());
T[] tArrs = (T[]) Array.newInstance(clazz,objs.length);
for(int i=0;i<objs.length;i++){
JSONObject jsonObj = JSONObject.fromObject(objs[i],config); //再使用JsonObject遍历一个个的对像
T t = (T) jsonObj.toBean(jsonObj,clazz); //指定转换的类型,但仍需要强制转化-成功
tArrs[i]=t;
}
return tArrs;
}
return null;
}
/**
* 将javaBean转成json串
* @param obj 对象
* @param ignore 过滤掉的属性
* @return
*/
public static String javaBeanToJson(Object obj,final String[] ignore){
JsonConfig config = new JsonConfig();
config.registerJsonValueProcessor(Date.class,new JsonDateValueProcessor());
PropertyFilter filter = new PropertyFilter(){
public boolean apply(Object source,String name,Object value){
if(ignore!=null && ignore.length>0){
for(String s : ignore){
if(s!=null && s.equals(name)) {
return true;
}
}
}
return false;
}
};
config.setJsonPropertyFilter(filter);
JSONArray s = JSONArray.fromObject(obj,config);
return s.toString();
}
}
package com.cjonline.foundation.util;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import net.sf.json.JsonConfig;
import net.sf.json.processors.JsonValueProcessor;
public class JsonDateValueProcessor implements JsonValueProcessor { /** * datePattern */ private String datePattern = "yyyy-MM-dd"; /** * JsonDateValueProcessor */ public JsonDateValueProcessor() { super(); } public JsonDateValueProcessor(String format) { super(); this.datePattern = format; } public Object processArrayValue(Object value,JsonConfig jsonConfig) { return process(value); } public Object processObjectValue(String key,Object value,JsonConfig jsonConfig) { return process(value); } private Object process(Object value) { try { if (value instanceof Date) { SimpleDateFormat sdf = new SimpleDateFormat(datePattern,Locale.UK); return sdf.format((Date) value); } return value == null ? "" : value.toString(); } catch (Exception e) { return ""; } } public String getDatePattern() { return datePattern; } public void setDatePattern(String pDatePattern){ datePattern = pDatePattern; } }