如何在CF中获取java类

本文介绍了如何在CF中获取java类的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我想从我的coldfusion文件中的java方法访问返回值。我已经加载所有的jar文件在coldfusion文件，并获得了java类对象成功。使用类对象，我想访问java类方法，它返回一个 Set ;但我不能得到任何返回值。 这是我的Java代码：

I want to access the return value from a java method in my coldfusion file. I have loaded all the jar files in coldfusion file and got the java class object successfully. Using the class object, I want to access java class method which returns a Set; but I can't get any return value. Here is my Java Code:

public Set getSession(String url) { result+="hello"; try { DesiredCapabilities caps = new DesiredCapabilities(); caps.setJavascriptEnabled(true); caps.setCapability("takesScreenshot", false); caps.setCapability( PhantomJSDriverService.PHANTOMJS_EXECUTABLE_PATH_PROPERTY, "E:\\TicketScraper\\phantomjs\\phantomjs.exe" ); driver = new PhantomJSDriver(caps); driver.get(url); driver.findElement(By.id("login:loginName")).sendKeys("XXXX"); driver.findElement(By.id("login:password")).sendKeys("XXXX"); waitForJQueryProcessing(driver, 5); driver.findElement(By.id("login:j_idt145")).click(); Thread.sleep(10000); Set<org.openqa.selenium.Cookie> allCookies=driver.manage().getCookies(); for ( org.openqa.selenium.Cookie loadedCookie : allCookies) { System.out.println(String.format("%s -> %s", loadedCookie.getName(),loadedCookie.getValue())); } } catch(Exception e) { System.out.println(e); } return allCookies; }

java代码运行Phantom JS驱动程序，登录到上面的代码，并获取所有的cookie。所有cookie都收集在 Set 变量中，并从方法中返回。我想在CF代码中获得这个设置变量。

The java code runs the Phantom JS driver, logs in to the URL in the above code, and gets all cookies. All cookies are collected in a Set variable and returned from the method. I want to get this set variable in CF code.

但是当我试图访问java方法的 Set 在CF中的变量不返回任何值。相比之下，当我注释掉所有Phantom JS代码并只返回一个 String 变量，然后CF可以访问字符串值。 这是我的CF代码：

But when I have tried to access the java method's Set variable in CF it doesn't return any value. By contrast, when I have commented out all the Phantom JS code and return only a String variable then CF can access the string value. Here is my CF code:

<cfscript> paths = arrayNew(1); paths[1] = expandPath("lib\apache-mime4j-0.6.jar"); paths[2] = expandPath("lib\bsh-1.3.0.jar"); paths[3] = expandPath("lib\cglib-nodep-2.1_3.jar"); paths[4] = expandPath("lib\commons-codec-1.9.jar"); paths[5] = expandPath("lib\commons-collections-3.2.1.jar"); paths[6] = expandPath("lib\commons-exec-1.1.jar"); paths[7] = expandPath("lib\commons-io-2.4.jar"); paths[8] = expandPath("lib\commons-jxpath-1.3.jar"); paths[9] = expandPath("lib\commons-lang3-3.3.2.jar"); paths[10] = expandPath("lib\commons-logging-1.1.3.jar"); paths[11] = expandPath("lib\Counsel_Cookies_Phantom.jar"); paths[12] = expandPath("lib\cssparser-0.9.14.jar"); paths[13] = expandPath("lib\gson-2.3.jar"); paths[14] = expandPath("lib\guava-18.0.jar"); paths[15] = expandPath("lib\hamcrest-core-1.3.jar"); paths[16] = expandPath("lib\hamcrest-library-1.3.jar"); paths[17] = expandPath("lib\htmlunit-2.15.jar"); paths[18] = expandPath("lib\htmlunit-core-js-2.15.jar"); paths[19] = expandPath("lib\httpclient-4.3.4.jar"); paths[20] = expandPath("lib\httpcore-4.3.2.jar"); paths[21] = expandPath("lib\httpmime-4.3.4.jar"); paths[22] = expandPath("lib\ini4j-0.5.2.jar"); paths[23] = expandPath("lib\jcommander-1.29.jar"); paths[24] = expandPath("lib\jetty-websocket-8.1.8.jar"); paths[25] = expandPath("lib\jna-3.4.0.jar"); paths[26] = expandPath("lib\jna-platform-3.4.0.jar"); paths[27] = expandPath("lib\junit-dep-4.11.jar"); paths[28] = expandPath("lib\netty-3.5.7.Final.jar"); paths[29] = expandPath("lib\nekohtml-1.9.21.jar"); paths[30] = expandPath("lib\operadriver-1.5.jar"); paths[31] = expandPath("lib\phantomjsdriver-1.1.0.jar"); paths[32] = expandPath("lib\protobuf-java-2.4.1.jar"); paths[33] = expandPath("lib\sac-1.3.jar"); paths[34] = expandPath("lib\selenium-java-2.44.0.jar"); paths[35] = expandPath("lib\selenium-java-2.44.0-srcs.jar"); paths[36] = expandPath("lib\serializer-2.7.1.jar"); paths[37] = expandPath("lib\testng-6.8.5.jar"); paths[38] = expandPath("lib\xalan-2.7.1.jar"); paths[39] = expandPath("lib\xercesImpl-2.11.0.jar"); paths[40] = expandPath("lib\xml-apis-1.4.01.jar"); paths[41] = expandPath("lib\Selenium_Cookies.jar"); paths[42] = expandPath("lib\selenium-server-2.0b2.jar"); //writeDump(paths); //create the loader loader = createObject("component", "javaloader.JavaLoader").init(paths,true); //writeDump(loader); excelObject = loader.create("counsel_cookies_phantom.Counsel_Cookies_Phantom"); //writeDump(excelObject); //abort; </cfscript> <cfdump var=#excelObject.getSession("pacer.login.uscourts.gov/csologin/login.jsf")#/> <cfabort>

请提供您如何访问CF中Phantom JS值的建议。

Please provide your suggestions of how to access the Phantom JS value in CF.

推荐答案

假设你的 Set 是一个 java.util.Set ，然后调用 toArray（）会给你一个容易在CF中访问的数组。

Assuming your Set is a java.util.Set, then calling toArray() would give you an array that's easily accessible in CF.

例如

<cfscript> s = createObject("java", "java.util.HashSet").init(); s.add("foo"); s.add("bar"); s.add("bob"); arr = s.toArray(); writeDump(arr); </cfscript>

在TryCF上运行