我嘗試使用intellij運行netbeans IDE創建的JFrameForm，我從netbeans復制源代碼并將其粘貼到新的java類中，并在主函數中創建對象并設置jframe包含的類的可見性并運行它，它給出了以下錯誤2019-09-21 17:36:31.363Exception in thread "main" java.awt.HeadlessExceptionat java.desktop/java.awt.GraphicsEnvironment.checkHeadless(GraphicsEnvironment.java:208)INFO at java.desktop/java.awt.Window.<init>(Window.java:548)4744 at java.desktop/java.awt.Frame.<init>(Frame.java:423)--- at java.desktop/java.awt.Frame.<init>(Frame.java:388)[ Thread-1] at java.desktop/javax.swing.JFrame.<init>(JFrame.java:180)j.LocalContainerEntityManagerFactoryBean at com.sunTravel.frontend.uiComponents.MainFrame.<init> (MainFrame.java:19): at com.sunTravel.frontend.FrontendApplication.main(FrontendApplication.java:12)Closing JPA EntityManagerFactory for persistence unit 'default'2019-09-21 17:36:31.364 INFO 4744 --- [ Thread-1] .SchemaDropperImpl$DelayedDropActionImpl : HHH000477: Starting delayed evictData of schema as part of SessionFactory shut-down'2019-09-21 17:36:31.367 INFO 4744 --- [ Thread-1] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated...2019-09-21 17:36:31.370 INFO 4744 --- [ Thread-1] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed.Process finished with exit code 1我的源代碼如下，如何解決這個問題？@SpringBootApplicationpublic class FrontendApplication { public static void main(String[] args) { SpringApplication.run(FrontendApplication.class, args); MainFrame mf = new MainFrame(); mf.setVisible(true); }}
2 回答
一只萌萌小番薯
TA貢獻1795條經驗 獲得超7個贊
嘗試禁用無頭屬性，如下所示。 您必須在創建/顯示 JFrame 之前執行此操作。
System.setProperty("java.awt.headless", "false"); //Disables headless
一個例子：
SpringApplication.run(MyClass.class, args);
System.setProperty("java.awt.headless", "false");
SwingUtilities.invokeLater(() -> {
JFrame f = new JFrame("myframe");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setVisible(true);
});
慕容708150
TA貢獻1831條經驗 獲得超4個贊
嘗試這個
public static void main(String[] args) {
? ? SpringApplicationBuilder builder = new SpringApplicationBuilder(DemoApplication.class);
? ? builder.headless(false);
? ? builder.run(args);
? ? MainFrame mf = new MainFrame();
? ? mf.setVisible(true);
}
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