在Java中使用phantomJs的一个简单示例将无限期地阻止:
public void runPhantomJs(String path, String command) {
Process process;
String outFile = "a11.txt";
try {
process = Runtime.getRuntime().exec(path+ " " + command + " > " +outFile);
int exitStatus = process.waitFor();
//String status = (exitStatus == 0 ? "SUCCESS:" : "ERROR:");
File f = new File(outFile);
if (f.exists()) {
BufferedReader in = new BufferedReader(new InputStreamReader(new FileInputStream(f),"UTF-8"));
String str;
while ((str = in.readLine()) != null) {
System.out.println(str);
}
in.close();
System.out.println(str);
}
} catch (IOException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
脚本执行非常简单,但它在控制台上返回整个页面:
var webPage = require('webpage');
var page = webPage.create();
page.open('http://www.google.com/', function(status) {
if (status !== 'success') {
console.log('1');
phantom.exit();
} else {
console.log(page.content);
phantom.exit();
}
});
请注意,在粘贴的代码中,我添加了一个“> a11.txt”,以查看它是否更适合读取文件而不是直接读取输出。它应该更快,但由于某种原因它不起作用。我想重定向>不起作用。
答案 0 :(得分:0)
所以我让我的代码工作。显然必须读取phantomjs的输出或缓冲区将完全填满,阻止进一步执行。
所以我认为如果你这样修改你的代码就可以了:
process = Runtime.getRuntime().exec(path+ " " + command + " > " +outFile);
BufferedInputStream bis = new BufferedInputStream(process.getInputStream());
bis.close();
process.waitFor();
...
如果不起作用,请尝试使用ProcessBuilder。这是我的工作代码: 尝试{ String phantomJsExe = configuration.getPhantomJsExe()。toString(); String phantomJsScript = configuration.getPhantomJsScript()。toString(); String urlsTextFile = configuration.getPhantomJsUrlsTextFile()。toString();
Process process = new ProcessBuilder(phantomJsExe, phantomJsScript, urlsTextFile).start();
BufferedInputStream bis = new BufferedInputStream(process.getInputStream());
bis.close();
process.waitFor();
} catch (Exception ex) {
ex.printStackTrace();
}