在eclipse中设置maven java项目[关闭](Setup maven java project in eclipse [closed])

 你确定你在两个项目中使用相同的jar吗？ 
 
 Android的org.json.JSONObject.toString(String)是不同的： 
 
/**
 * Returns the value mapped by {@code name} if it exists, coercing it if
 * necessary, or throws if no such mapping exists.
 *
 * @throws JSONException if no such mapping exists.
 */
public String getString(String name) throws JSONException {
    Object object = get(name);
    String result = JSON.toString(object);
    if (result == null) {
        throw JSON.typeMismatch(name, object, "String");
    }
    return result;
}
 
 JSON.toString(Object) ： 
 
static String toString(Object value) {
    if (value instanceof String) {
        return (String) value;
    } else if (value != null) {
        return String.valueOf(value);
    }
    return null;
}
 
 在你的情况下，这不会在Android上引发异常。 

Are you sure you are using the same jar in both projects? 
 
Android's org.json.JSONObject.toString(String) is different:
 
/**
 * Returns the value mapped by {@code name} if it exists, coercing it if
 * necessary, or throws if no such mapping exists.
 *
 * @throws JSONException if no such mapping exists.
 */
public String getString(String name) throws JSONException {
    Object object = get(name);
    String result = JSON.toString(object);
    if (result == null) {
        throw JSON.typeMismatch(name, object, "String");
    }
    return result;
}
 
JSON.toString(Object):
 
static String toString(Object value) {
    if (value instanceof String) {
        return (String) value;
    } else if (value != null) {
        return String.valueOf(value);
    }
    return null;
}
 
In your case this would not throw an exception on Android.