我正在尝试向控制器注入会话范围的服务。这是我的控制器类ActionController.groovy：
package rafonline
import grails.converters.JSON
import grails.plugin.springsecurity.annotation.Secured
@Secured("ROLE_ADMIN")
class ActionController {
def tweetingService
def index() {
}
def retweetUsers(){
String message="done"
boolean success=true
try {
final def handles=String.valueOf(params.handles).trim().split("\n")
final def passwords=String.valueOf(params.passwords).trim().split("\n")
final def numRTs=String.valueOf(params.numRTs).trim().split("\n")
final def statusIdsString=String.valueOf(params.tweetURLs).trim().split("\n")
if(!tweetingService.isRunning){
new Thread(new Runnable(){
@Override
void run() {
tweetingService.retweetUsers(statusIdsString,handles,passwords,numRTs);
}
}).start();
}
} catch (Exception e) {
message=e.getMessage()
success=false
}
render contentType: 'text/json', text: [success: success, message: "${message}"] as JSON
}
def getUpdateProgress(){
render contentType: 'text/json',text:[running:tweetingService.isRunning,message: tweetingService.messsage] as JSON
}
}
这是我的会话范围服务TweetingService.groovy： 包rafonline
import grails.transaction.Transactional
import org.jsoup.Connection
import org.jsoup.Jsoup
import org.jsoup.nodes.Document
import org.jsoup.nodes.Element
import org.jsoup.select.Elements
@Transactional
class TweetingService {
private final String PARAM1 = "some1";
private final String PARAM2 = "some2";
private final String PARAM3 = "some3";
private final String USER_AGENT = "some4";
private final Long TIMEOUT = 60000
static scope = "session"
def messsage = "Waiting"
def isRunning = false
def stopit=false
def retweetUsers(String[] statusIds, String[] username, String[] password, String[] numRTs) {
if (isRunning) {
return
} else {
try {
int count = 1;
isRunning = true
statusIds=convertStatusURLArrayToStatusIDArray(statusIds)
def totalLength = statusIds.length
for (int i = 0; i < statusIds.length; i++) {
def statusId = statusIds[i]
def numRT = username.length
try{
numRT=Integer.parseInt(numRTs[i])
}catch(Exception e){
numRT=username.length
}
shuffleArray(username, password)
messsage = "Processing ${i + 1} of ${totalLength}"
for (int j = 0; j < numRT; j++) {
if(stop){
stop=false
break;
}
try {
//Do something
} catch (Exception e) {
e.printStackTrace();
}
messsage = "Total Processed: ${totalLength} Failed: ${totalLength - count} Success:${count}"
}
}
} catch (Exception e) {
} finally {
isRunning=false
}
}
}
def Map<String, String> getFormParams(String html, String username, String password)
throws UnsupportedEncodingException {
System.out.println("Extracting form's data...");
Document doc = Jsoup.parse(html);
// Google form id
Element loginform = doc.getElementsByTag("form").get(2);
Elements inputElements = loginform.getElementsByTag("input");
List<String> paramList = new ArrayList<String>();
Map<String, String> map = new HashMap<String, String>();
for (Element inputElement : inputElements) {
String key = inputElement.attr("name");
String value = inputElement.attr("value");
if (key.equals("session[username_or_email]"))
value = username;
else if (key.equals("session[password]"))
value = password;
map.put(key, value);
}
// build parameters list
return map;
}
def convertStatusURLArrayToStatusIDArray(String[]statusIdArray){
String[]outputArray=new String[statusIdArray.length]
for(int i=0;i<statusIdArray.length;i++){
outputArray[i]=getStatusIdFromTweetURL(statusIdArray[i]);
}
return outputArray
}
def getStatusIdFromTweetURL(String tweetURL){
def tokens=tweetURL.split("/")
for(String s:tokens){
try{
Long.parseLong(s)
return s
}catch (Exception e){
}
}
return null
}
static void shuffleArray(String[] usernames, String[] passwords) {
Random rnd = new Random();
for (int i = usernames.length - 1; i > 0; i--) {
int index = rnd.nextInt(i + 1);
// Simple swap
String a = usernames[index];
usernames[index] = usernames[i];
usernames[i] = a;
String b = passwords[index];
passwords[index] = passwords[i];
passwords[i] = b;
}
}
def stop(){
stopit=Boolean.TRUE
}
}
def retweetUsers(){
String message="done"
boolean success=true
try {
final def handles=String.valueOf(params.handles).trim().split("\n")
final def passwords=String.valueOf(params.passwords).trim().split("\n")
final def numRTs=String.valueOf(params.numRTs).trim().split("\n")
final def statusIdsString=String.valueOf(params.tweetURLs).trim().split("\n")
if(!tweetingService.isRunning){
new Thread(new Runnable(){
@Override
void run() {
tweetingService.retweetUsers(statusIdsString,handles,passwords,numRTs);
}
}).start();
}
} catch (Exception e) {
message=e.getMessage()
success=false
}
render contentType: 'text/json', text: [success: success, message: "${message}"] as JSON
}
def getUpdateProgress(){
render contentType: 'text/json',text:[running:tweetingService.isRunning,message: tweetingService.messsage] as JSON
}
}
但是在运行上面的应用程序时，我收到以下错误：
2015-04-02 16:47:22,552 [localhost-startStop-1] ERROR context.GrailsContextLoader - Error initializing the application: Error creating bean with name 'rafonline.ActionController': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tweetingService': Scope 'session' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet/DispatcherPortlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request.
Message: Error creating bean with name 'rafonline.ActionController': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tweetingService': Scope 'session' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet/DispatcherPortlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request.
Line | Method
->> 529 | doCreateBean in org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
| 127 | doCreateBean in org.codehaus.groovy.grails.commons.spring.ReloadAwareAutowireCapableBeanFactory
| 458 | createBean . . . . . . . . . . in org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory
| 296 | getObject in org.springframework.beans.factory.support.AbstractBeanFactory$1
| 223 | getSingleton . . . . . . . . . in org.springframework.beans.factory.support.DefaultSingletonBeanRegistry
| 293 | doGetBean in org.springframework.beans.factory.support.AbstractBeanFactory
| 194 | getBean . . . . . . . . . . . . in ''
| 628 | preInstantiateSingletons in org.springframework.beans.factory.support.DefaultListableBeanFactory
| 932 | finishBeanFactoryInitialization in org.springframework.context.support.AbstractApplicationContext
| 479 | refresh in ''
| 156 | getApplicationContext . . . . . in org.codehaus.groovy.grails.commons.spring.DefaultRuntimeSpringConfiguration
| 169 | configure in org.codehaus.groovy.grails.commons.spring.GrailsRuntimeConfigurator
| 127 | configure . . . . . . . . . . . in ''
| 122 | configureWebApplicationContext in org.codehaus.groovy.grails.web.context.GrailsConfigUtils
| 108 | initWebApplicationContext . . . in org.codehaus.groovy.grails.web.context.GrailsContextLoader
| 112 | contextInitialized in org.springframework.web.context.ContextLoaderListener
| 4973 | listenerStart . . . . . . . . . in org.apache.catalina.core.StandardContext
| 5467 | startInternal in ''
| 150 | start . . . . . . . . . . . . . in org.apache.catalina.util.LifecycleBase
| 1559 | call in org.apache.catalina.core.ContainerBase$StartChild
| 1549 | call . . . . . . . . . . . . . in ''
| 262 | run in java.util.concurrent.FutureTask
| 1145 | runWorker . . . . . . . . . . . in java.util.concurrent.ThreadPoolExecutor
| 615 | run in java.util.concurrent.ThreadPoolExecutor$Worker
^ 745 | run . . . . . . . . . . . . . . in java.lang.Thread
Caused by BeanCreationException: Error creating bean with name 'tweetingService': Scope 'session' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet/DispatcherPortlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request.
所以我不允许简单地将会话作用域服务注入控制器？或者我做错了什么？
编辑：
我已经看过this链接并尝试设置static proxy = true。然而，它不起作用和相同的错误。
答案 0 :(得分：0)
我认为错误暗示你是一个解决方案
'tweetingService': Scope 'session' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton;
定义
static proxy=true投入使用
进一步ref
答案 1 :(得分：0)
尝试在Config.groovy中更改控制器的默认范围
// The default scope for controllers. May be prototype, session or singleton.
// If unspecified, controllers are prototype scoped.
grails.controllers.defaultScope = 'session'