如何在 CF 中获取 java 类

Question

我想在我的coldfusion文件中访问java方法的返回值。我已经在coldfusion文件中加载了所有jar文件，并成功获得了java类对象。使用类对象，我想访问返回Set的java类方法;但我无法获得任何返回值。这是我的Java代码：

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，登录到上述代码中的URL，并获取所有cookie。所有 cookie 都收集在 Set 变量中，并从方法返回。我想在 CF 代码中获取这个集合变量。

但是当我尝试在 CF 中访问 java 方法的 Set 变量时，它不会返回任何值。相比之下，当我注释掉所有Phantom JS代码并只返回一个String变量时，CF可以访问字符串值。这是我的CF代码：

<cfscript>
    paths = arrayNew(1);
    paths[1] = expandPath("libapache-mime4j-0.6.jar");
    paths[2] = expandPath("libbsh-1.3.0.jar"); 
    paths[3] = expandPath("libcglib-nodep-2.1_3.jar");
    paths[4] = expandPath("libcommons-codec-1.9.jar");
    paths[5] = expandPath("libcommons-collections-3.2.1.jar");
    paths[6] = expandPath("libcommons-exec-1.1.jar");
    paths[7] = expandPath("libcommons-io-2.4.jar");
    paths[8] = expandPath("libcommons-jxpath-1.3.jar");
    paths[9] = expandPath("libcommons-lang3-3.3.2.jar");
    paths[10] = expandPath("libcommons-logging-1.1.3.jar");
    paths[11] = expandPath("libCounsel_Cookies_Phantom.jar");
    paths[12] = expandPath("libcssparser-0.9.14.jar");
    paths[13] = expandPath("libgson-2.3.jar");
    paths[14] = expandPath("libguava-18.0.jar");
    paths[15] = expandPath("libhamcrest-core-1.3.jar");
    paths[16] = expandPath("libhamcrest-library-1.3.jar");
    paths[17] = expandPath("libhtmlunit-2.15.jar");
    paths[18] = expandPath("libhtmlunit-core-js-2.15.jar");
    paths[19] = expandPath("libhttpclient-4.3.4.jar");
    paths[20] = expandPath("libhttpcore-4.3.2.jar");
    paths[21] = expandPath("libhttpmime-4.3.4.jar");
    paths[22] = expandPath("libini4j-0.5.2.jar");
    paths[23] = expandPath("libjcommander-1.29.jar");
    paths[24] = expandPath("libjetty-websocket-8.1.8.jar");
    paths[25] = expandPath("libjna-3.4.0.jar");
    paths[26] = expandPath("libjna-platform-3.4.0.jar");
    paths[27] = expandPath("libjunit-dep-4.11.jar");
    paths[28] = expandPath("libnetty-3.5.7.Final.jar");
    paths[29] = expandPath("libnekohtml-1.9.21.jar");
    paths[30] = expandPath("liboperadriver-1.5.jar");
    paths[31] = expandPath("libphantomjsdriver-1.1.0.jar");
    paths[32] = expandPath("libprotobuf-java-2.4.1.jar");
    paths[33] = expandPath("libsac-1.3.jar");
    paths[34] = expandPath("libselenium-java-2.44.0.jar");
    paths[35] = expandPath("libselenium-java-2.44.0-srcs.jar");
    paths[36] = expandPath("libserializer-2.7.1.jar");
    paths[37] = expandPath("libtestng-6.8.5.jar");
    paths[38] = expandPath("libxalan-2.7.1.jar");
    paths[39] = expandPath("libxercesImpl-2.11.0.jar");
    paths[40] = expandPath("libxml-apis-1.4.01.jar");
    paths[41] = expandPath("libSelenium_Cookies.jar");
    paths[42] = expandPath("libselenium-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("https://pacer.login.uscourts.gov/csologin/login.jsf")#/>
<cfabort>

请提供有关如何在 CF 中访问 Phantom JS 值的建议。

Answer 1

假设你的Set是一个java.util.Set，那么调用toArray()会给你一个在CF中很容易访问的数组。

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.com 上运行此