语法错误，插入" ... VariableDeclaratorId"完成FormalParameterList [英] Syntax error, insert "... VariableDeclaratorId" to complete FormalParameterList

问题描述

我在使用此代码时遇到一些问题：

I am facing some issues with this code:

import edu.uci.ics.crawler4j.crawler.CrawlConfig;
import edu.uci.ics.crawler4j.crawler.CrawlController;
import edu.uci.ics.crawler4j.fetcher.PageFetcher;
import edu.uci.ics.crawler4j.robotstxt.RobotstxtConfig;
import edu.uci.ics.crawler4j.robotstxt.RobotstxtServer;

public class Controller {

     String crawlStorageFolder = "/data/crawl/root";
     int numberOfCrawlers = 7;

     CrawlConfig config = new CrawlConfig();
     config.setCrawlStorageFolder(crawlStorageFolder);
     /*
      * Instantiate the controller for this crawl.
      */
     PageFetcher pageFetcher = new PageFetcher(config);
     RobotstxtConfig robotstxtConfig = new RobotstxtConfig();
     RobotstxtServer robotstxtServer = new RobotstxtServer(robotstxtConfig, pageFetcher);
     CrawlController controller = new CrawlController(config, pageFetcher, robotstxtServer);

     /*
      * For each crawl, you need to add some seed urls. These are the first
      * URLs that are fetched and then the crawler starts following links
      * which are found in these pages
      */
     controller.addSeed("http://www.ics.uci.edu/~lopes/");
     controller.addSeed("http://www.ics.uci.edu/~welling/");
     controller.addSeed("http://www.ics.uci.edu/");
     /*
      * Start the crawl. This is a blocking operation, meaning that your code
      * will reach the line after this only when crawling is finished.
      */
     controller.start(MyCrawler.class, numberOfCrawlers);
 }

我收到以下错误：

语法错误，插入...... VariableDeclaratorId完成
FormalParameterListon
config.setCrawlStrorageFolder（crawlStorageFolder）

"Syntax error, insert "... VariableDeclaratorId" to complete FormalParameterList" on config.setCrawlStrorageFolder(crawlStorageFolder)

推荐答案

你不能在类体中直接拥有这样的任意代码。它必须位于方法（或构造函数或初始化块）中。

You can't have arbitrary code like that directly in the class body. It must be in a method (or constructor, or initialization block).

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