我已經創建了一個java應用程序,基本上從網站上剪下數據並創建一個.csv文件。我在NetBeans中執行它時運行良好,並創建了34kb的文件。但是,當我構建它並運行.JAR可執行文件時,它會創建相同的文件,但文件大小爲4kb,並且不會引入所有數據。 我在java 1.8上構建項目。我不明白這個問題究竟是什麼背後的原因。這是Java版本的問題嗎?在此先感謝您的幫助。 很抱歉沒有在這裏添加代碼。這是我的項目的代碼。.JAR可執行文件運行不正確
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.Iterator;
import java.util.Locale;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
//this program is for open-end-summary
/**
*
* @author talha
*/
public class ComMufapScraping {
boolean writeCSVToConsole = true;
boolean writeCSVToFile = true;
boolean sortTheList = true;
boolean writeToConsole;
boolean writeToFile;
public static Document doc = null;
public static Elements tbodyElements = null;
public static Elements elements = null;
public static Elements tdElements = null;
public static Elements trElement2 = null;
public static String Dcomma = ",";
public static String line = "";
public static ArrayList<Elements> sampleList = new ArrayList<Elements>();
public static void createConnection() throws IOException {
System.setProperty("http.proxyHost", "191.1.1.202");
System.setProperty("http.proxyPort", "8080");
String tempUrl = "http://www.mufap.com.pk/nav_returns_performance.php?tab=01";
doc = Jsoup.connect(tempUrl).get();
}
public static void parsingHTML() throws Exception {
for (Element table : doc.getElementsByTag("table")) {
for (Element trElement : table.getElementsByTag("tr")) {
trElement2 = trElement.getElementsByTag("tr");
tdElements = trElement.getElementsByTag("td");
File fold = new File("C:\\open-end-smry.csv");
fold.delete();
File fnew = new File("C:\\open-end-smry.csv");
FileWriter sb = new FileWriter(fnew, true);
if (trElement.hasClass("tab-data1")) {
for (Iterator<Element> it = tdElements.iterator(); it.hasNext();) {
if (it.hasNext()) {
sb.append("\r\n");
}
for (Iterator<Element> it2 = trElement2.iterator(); it.hasNext();) {
Element tdElement2 = it.next();
final String content = tdElement2.text();
if (it2.hasNext()) {
sb.append(formatData(content));
sb.append(" , ");
}
if (!it.hasNext()) {
String content1 = content.replaceAll(",$", " ");
sb.append(formatData(content1));
//it2.next();
}
}
System.out.println(sb.toString());
sb.flush();
sb.close();
}
}
System.out.println(sampleList.add(tdElements));
}
}
}
private static final SimpleDateFormat FORMATTER_MMM_d_yyyy = new SimpleDateFormat("MMM d, yyyy", Locale.US);
private static final SimpleDateFormat FORMATTER_dd_MMM_yyyy = new SimpleDateFormat("dd-MMM-YYYY", Locale.US);
public static String formatData(String text) {
String tmp = null;
try {
Date d = FORMATTER_MMM_d_yyyy.parse(text);
tmp = FORMATTER_dd_MMM_yyyy.format(d);
} catch (ParseException pe) {
tmp = text;
}
return tmp;
}
public static void main(String[] args) throws IOException, Exception {
createConnection();
parsingHTML();
}
}
這是構建項目後的日誌貓文件。
螞蟻-f C:\用戶\塔爾哈\文件\的NetBeansProjects \ com.open_end_smry -Dnb.internal.action.name =重建清潔罐INIT:DEPS清潔:更新屬性文件: C: \ Users \ talha \ Documents \ NetBeansProjects \ com.open_end_smry \ build \ built-clean.properties 刪除目錄 C:\ Users \ talha \ Documents \ NetBeansProjects \ com.open_end_smry \ build clean:init:deps-jar:Created dir: C:\ Users \ talha \ Documents \ NetBeansProjects \ com.open_end_smry \ build 更新屬性文件: C:\ Users \ talha \ Documents \ NetBeansProjects \ com.open_end_smry \ build \ built-jar.prop ERTIES 創建目錄: C:\用戶\塔拉\文檔\的NetBeansProjects \ com.open_end_smry \建立\類 創建目錄: C:\用戶\塔拉\文檔\的NetBeansProjects \ com.open_end_smry \建立\空 創建目錄: C:\ Users \ talha \ Documents \ NetBeansProjects \ com.open_end_smry \ build \ generated-sources \ ap-source-output 將1個源文件編譯爲 C:\ Users \ talha \ Documents \ NetBeansProjects \ com.open_end_smry \ build \ classes 警告:[options]引導類路徑未與 一起設置-source 1.7 1警告編譯:創建目錄:C:\ Users \ talha \ Documents \ NetBeansProjects \ com.open_end_smry \ dist 將1個文件複製到 C:\ Users \用戶塔拉\文檔\氖tBeansProjects \ com.open_end_smry \ build將 庫複製到 C:\ Users \ talha \ Documents \ NetBeansProjects \ com.open_end_smry \ dist \ lib。 構建jar: C:\ Users \ talha \ Documents \ NetBeansProjects \ com.open_end_smry \ dist \ com.open_end_smry.jar 要從沒有Ant的命令行運行此應用程序,請嘗試:java -jar「C:\ Users \塔拉\文檔\的NetBeansProjects \ com.open_end_smry \ DIST \ com.open_end_smry.jar」 罐子:BUILD SUCCESSFUL(總時間:0秒)
你需要把你的項目拷貝到本地機器上。然後在你的控制檯上運行'javac file.java',然後'java File'。如果你已經正確安裝了Java,這應該可以工作。 –
假設所有內容都被正確複製和編譯,我們無法知道您提到的內容出了什麼問題。 –
如果您可以提供[mcve],我們可以嘗試重現該問題。沒有一些代碼,很難幫你 –