修改org.json.JSONObject的stringToValue，返回能容纳整数的最小包装类型而不是Integer。

(修正数据交互工具中当对象包含属性的类型为类型为byte/short时反射调用field.set(bean,obj)引发异常。)

黑色粗体斜体为增加部分，修改后代码如下：

static public Object stringToValue(String s) {

if (s.equals("")) {

return s;

}

if (s.equalsIgnoreCase("true")) {

return Boolean.TRUE;

}

if (s.equalsIgnoreCase("false")) {

return Boolean.FALSE;

}

if (s.equalsIgnoreCase("null")) {

return JSONObject.NULL;

}

/*

* If it might be a number,try converting it.

* We support the non-standard 0x- convention.

* If a number cannot be produced,then the value will just

* be a string. Note that the 0x-,plus,and implied string

* conventions are non-standard. A JSON parser may accept

* non-JSON forms as long as it accepts all correct JSON forms.

*/

char b = s.charAt(0);

if ((b >= '0' && b <= '9') || b == '.' || b == '-' || b == '+') {

if (b == '0' && s.length() > 2 &&

(s.charAt(1) == 'x' || s.charAt(1) == 'X')) {

try {

return new Integer(Integer.parseInt(s.substring(2),16));

} catch (Exception ignore) {

}

}

try {

if (s.indexOf('.') > -1 ||

s.indexOf('e') > -1 || s.indexOf('E') > -1) {

return Double.valueOf(s);

} else {

Long myLong = new Long(s);

if (myLong.shortValue() == myLong.byteValue()) {

return new Byte(myLong.byteValue());

} if (myLong.intValue() == myLong.shortValue()) {

return new Short(myLong.shortValue());

} if (myLong.longValue() == myLong.intValue()) {

return new Integer(myLong.intValue());

} else {

return myLong;

}

}

} catch (Exception ignore) {

}

}

return s;

}

还有org.json.JSONObject中增加：

/** * Put a key/int pair in the JSONObject. * * @param key A key string. * @param value An int which is the value. * @return this. * @throws JSONException If the key is null. */ public JSONObject put(String key,byte value) throws JSONException { put(key,new Byte(value)); return this; } /** * Put a key/int pair in the JSONObject. * * @param key A key string. * @param value An int which is the value. * @return this. * @throws JSONException If the key is null. */ public JSONObject put(String key,short value) throws JSONException { put(key,new Short(value)); return this; }

总结

如果觉得编程之家网站内容还不错，欢迎将编程之家网站推荐给程序员好友。

本图文内容来源于网友网络收集整理提供，作为学习参考使用，版权属于原作者。

如您喜欢交流学习经验，点击链接加入交流1群：1065694478(已满)交流2群：163560250