实现一个通用的toString 的基类bean

import java.lang.reflect.Field;

public class BaseBean {

public String toString() {
   StringBuffer sb = new StringBuffer();
   try {
       Class t = this.getClass();
       Field[] fields = t.getDeclaredFields();
       for (int i = 0; i < fields.length; i++) {
          Field field = fields[i];
          field.setAccessible(true);
          sb.append("{");
          sb.append(field.getName());
          sb.append(":");
          if (field.getType() == Integer.class) {
              sb.append(field.getInt(this));
          } else if (field.getType() == Long.class) {
              sb.append(field.getLong(this));
          } else if (field.getType() == Boolean.class) {
              sb.append(field.getBoolean(this));
          } else if (field.getType() == char.class) {
              sb.append(field.getChar(this));
          } else if (field.getType() == Double.class) {
              sb.append(field.getDouble(this));
          } else if (field.getType() == Float.class) {
              sb.append(field.getFloat(this));
          } else
              sb.append(field.get(this));
          sb.append("}");
       }
   } catch (Exception e) {
       e.printStackTrace();
   }
   return sb.toString();
}

}