我得到一个奇怪的问题,我困在它至少4个小时了。其实我已经写了我的代码在一个控制器进行测试,但是当我将代码移到服务时,我得到一个奇怪的行为,即服务中的方法没有返回,或者可能是在服务中调用它们的方法只接收不到。退货不能在服务
class FacebookService implements InitializingBean, GroovyInterceptable {
def getUserLikes(def at){
List<String> listOfUrls = []
String basicFbUrl = "https://graph.facebook.com/"
String likeUrl = basicFbUrl + "me/likes?access_token=${at}"
URL url = new URL(likeUrl)
String jsonResponse = getResponseFromUrl(url)
println "JSON RESPONSE IS ${jsonResponse}" // this is showing null
}
String getResponseFromUrl() {
String something
String resp = null;
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
try {
int respCode = conn.responseCode
if (respCode == 400) {
log.error("COULD NOT MAKE CONNECTION")
BufferedReader br = new BufferedReader(new InputStreamReader(conn.getErrorStream()));
def jsonResp = JSON.parse(br.text)
} else {
resp = conn.getInputStream().getText()
}
} finally {
conn.disconnect()
}
println("RETURNIG RESPONSE ${resp}") // This returns me a map as expected
return resp;
}
不知道resp在哪里?请提供任何建议? OK我知道的罪魁祸首,我张贴invokeMethod中的代码
def invokeMethod(String name, args){
System.out.println("IN INVOKE METHOD NAME ${name}")
if(facebookPalsCache==null)
facebookPalsCache = new FacebookPalsCache(1000)
System.out.println("time before ${name} called: ${new Date()}")
//Get the method that was originally called.
def calledMethod = metaClass.getMetaMethod(name, args)
System.out.println("CALLED METHOD IS ${calledMethod}")
//The "?" operator first checks to see that the "calledMethod" is not
//null (i.e. it exists).
if(name.equals("getFriends")){
println "getFriends..."
def session = RequestContextHolder.currentRequestAttributes().getSession()
def friends = facebookPalsCache.get(session.facebook.uid)
if(!friends){
def getFriends = facebookGraphService.invokeMethod (name, args)
println "Saving FBFRIENDS in CACHE"
facebookPalsCache.put(session.facebook.uid, getFriends)
return getFriends
}
else return friends
}
else {
if(calledMethod){
System.out.println("IN IF AND INVOKING METHOD ${calledMethod}")
calledMethod.invoke(this, args)
}
else {
return facebookGraphService.invokeMethod(name, args)
}
}
System.out.println "RETURNING FROM INVOKE METHOD FOR NAME ${name}"
System.out.println("time after ${name} called: ${new Date()}\n")
}
确定什么是错在上面,我不知道是什么任何人都可以请帮助?
你能后的实际代码? –
您必须在可见性范围内具有其他名称为'methodB'的其他名称。闭包,变量,不管。实际代码为+1。 –
嗨胜利者,蒂姆:对于迟到的回应抱歉,但没有这样的..只是从一个UtilController我打电话给服务方法A,并从该方法A在服务我打电话给另一个methodB方法。现在一切都很好,直到methodB返回的东西,它在methodA中不可用,但是如果我在UtilController中写入methodB,我得到返回值..我认为它与我的服务有关,因为它实现了InitializingBean,GroovyInterceptable –