json-lib java.util.Date指定格式

package com.messoft.service.excel;

import java.text.SimpleDateFormat;
import java.util.Date;

import net.sf.json.JsonConfig;
import net.sf.json.processors.JsonValueProcessor;
import net.sf.json.util.CycleDetectionStrategy;

import com.messoft.utils.constant.ConfigConstant;

/**
* json-lib 辅助类
*
* @author 张秀皎
* @version 1.0, 2010-11-17
*/
public class JsonUtils {

public static JsonConfig configJson(String[] excludes, String datePattern) {
  JsonConfig jsonConfig = new JsonConfig();
  jsonConfig.setExcludes(excludes);
  jsonConfig.setIgnoreDefaultExcludes(false);
  jsonConfig.setCycleDetectionStrategy(CycleDetectionStrategy.LENIENT);
  jsonConfig.registerJsonValueProcessor(Date.class,
    new JsonUtils.DateJsonValueProcessor(datePattern));
  return jsonConfig;
}

public static class DateJsonValueProcessor implements JsonValueProcessor {

  private SimpleDateFormat sdf;

  public DateJsonValueProcessor() {
   sdf = new SimpleDateFormat(ConfigConstant.DATE_STYLE_SHOT);
  }

  public DateJsonValueProcessor(String datePattern) {
   sdf = new SimpleDateFormat(datePattern);
  }

  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) {
   return sdf.format((Date) value);
  }

}

}


用法：JSONObject jsonObject = JSONObject.fromObject(starvingProxy,JsonUtils.configJson(null, "yyyy-MM-dd"));