JSON帮助类

package com.boco.scms.comm;/*** * JSON帮助类,对象最多支持3层 * @author Wanglei */import java.util.List;import net.sf.json.JSONArray;import net.sf.json.JSONObject;import net.sf.json.JsonConfig;import net.sf.json.util.PropertyFilter;public class JSONUtil {    /**     * list转JSON     * @param list     * @return     */public static String toString(List list) {return toString(list, new String());}/** * @param list * @param filterPropertie 过滤属性名 * @return */public static String toString(List list, String filterPropertie) {return toString(list, new String[] { filterPropertie });}public static String toString(List list, String[] filterProperties) {return JSONArray.fromObject(list, setFilterPropertie(filterProperties)).toString();}/** * 对象转JSON * @param object * @return */public static String toString(Object object) {return toString(object, new String());}public static String toString(Object object, String filterPropertie) {return toString(object, new String[] { filterPropertie });}public static String toString(Object object, String[] filterPropertie) {return JSONObject.fromObject(object,setFilterPropertie(filterPropertie)).toString();}/** * JSON字符串转List * @param jsonString * @param objectClass 转换后list包含类 * @return */public static List toBean(String jsonString, Class objectClass) {return toBean(jsonString, objectClass, null);}public static List toBean(String jsonString, Class objectClass,String filterPropertie) {JSONArray array = JSONArray.fromObject(jsonString,setFilterPropertie(filterPropertie));return (List) JSONArray.toCollection(array, objectClass);}/** * 过滤器 * @param filterPropertie * @return */public static JsonConfig setFilterPropertie(final String filterPropertie) {String[] str = new String[] { filterPropertie };return setFilterPropertie(str);}public static JsonConfig setFilterPropertie(final String[] filterProperties) {JsonConfig config = new JsonConfig();config.setJsonPropertyFilter(new PropertyFilter() {public boolean apply(Object source, String name, Object value) {boolean bool = false;for (int i = 0; i < filterProperties.length; i++) {if (name.equals(filterProperties[i])) {bool = true;break;}}return bool;}});return config;}}