我得到错误:一些罐子不在类路径。因此，我只是删除损坏的jar并执行以下步骤

1.Project >  Setting>Build,Execution,Deployment>Compiler>check build project automatically
2.CTRL+SHIFT+A find/search **registry** --Check for below param
compiler.automake.allow.when.app.running
compiler.automake.trigger.delay=500---According to ur requirement
3.Add devtool in pom.xml
         <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <optional>true</optional>
        </dependency>
4.Build ,If found any probelm while building ,saying some jar in not in class path.Just delete the corrupted jar
and re-build the project angain after sync with maven lib

实际上没有区别，因为两者都需要1次点击:

Eclipse:手动保存，自动编译。 IntelliJ:自动保存，手动编译。

最简单的解决办法就是习惯它。因为当您在IDE中度过大部分时间时，最好在一个IDE中养成快习惯，而不是在几个IDE中养成慢习惯。

我设法用宏来解决这个问题。

我开始录制一个宏:

点击编辑-宏-开始宏录制 单击“文件-全部保存” 单击“生成-制作项目” 单击编辑-宏-停止宏记录

命名一些有用的东西，比如“SaveAndMake”。

现在只需删除保存所有键绑定，并添加相同的键绑定到您的宏!

所以现在，每次我保存，它保存并进行脏编译，jRebel现在正确地检测所有更改。

我最终录制了一个宏来保存并在一步中编译，并按Ctrl+s键映射到它。

我有同样的问题，也有一个问题文件图标在intellij，所以我删除了。idea文件夹和重新导入项目解决了我的问题。

使用Reformat and Compile插件(灵感来自Alexandre DuBreuil的Save Actions插件):

https://plugins.jetbrains.com/plugin/8231?pr=idea_ce

目前我只提供了一个jar文件，但这是代码中最重要的部分:

private final static Set<Document> documentsToProcess = new HashSet<Document>();
private static VirtualFile[] fileToCompile = VirtualFile.EMPTY_ARRAY;

// The plugin extends FileDocumentManagerAdapter.
// beforeDocumentSaving calls reformatAndCompile
private static void reformatAndCompile(
        @NotNull final Project project,
        @NotNull final Document document,
        @NotNull final PsiFile psiFile) {
    documentsToProcess.add(document);
    if (storage.isEnabled(Action.compileFile) && isDocumentActive(project, document)) {
        fileToCompile = isFileCompilable(project, psiFile.getVirtualFile());
    }
    ApplicationManager.getApplication().invokeLater(new Runnable() {
        @Override
        public void run() {
            if (documentsToProcess.contains(document)) {
                documentsToProcess.remove(document);
                if (storage.isEnabled(Action.optimizeImports)
                        || storage.isEnabled(Action.reformatCode)) {
                    CommandProcessor.getInstance().runUndoTransparentAction(new Runnable() {
                        @Override
                        public void run() {
                            if (storage.isEnabled(Action.optimizeImports)) {
                                new OptimizeImportsProcessor(project, psiFile)
                                    .run();
                            }
                            if (storage.isEnabled(Action.reformatCode)) {
                                new ReformatCodeProcessor(
                                        project,
                                        psiFile,
                                        null,
                                        ChangeListManager
                                            .getInstance(project)
                                            .getChange(psiFile.getVirtualFile()) != null)
                                                .run();
                            }
                            ApplicationManager.getApplication().runWriteAction(new Runnable() {
                                @Override
                                public void run() {
                                    CodeInsightUtilCore.forcePsiPostprocessAndRestoreElement(psiFile);
                                }
                            });
                        }
                    });
                }
            }

            if (fileToCompile.length > 0) {
                if (documentsToProcess.isEmpty()) {
                    compileFile(project, fileToCompile);
                    fileToCompile = VirtualFile.EMPTY_ARRAY;
                }
            } else if (storage.isEnabled(Action.makeProject)) {
                if (documentsToProcess.isEmpty()) {
                    makeProject(project);
                }
            } else {
                saveFile(project, document, psiFile.getVirtualFile());
            }
        }
    }, project.getDisposed());
}

private static void makeProject(@NotNull final Project project) {
    ApplicationManager.getApplication().invokeLater(new Runnable() {
        @Override
        public void run() {
            CompilerManager.getInstance(project).make(null);
        }
    }, project.getDisposed());
}

private static void compileFile(
        @NotNull final Project project,
        @NotNull final VirtualFile[] files) {
    ApplicationManager.getApplication().invokeLater(new Runnable() {
        @Override
        public void run() {
            CompilerManager.getInstance(project).compile(files, null);
        }
    }, project.getDisposed());
}

private static void saveFile(
        @NotNull final Project project,
        @NotNull final Document document,
        @NotNull final VirtualFile file) {
    ApplicationManager.getApplication().invokeLater(new Runnable() {
        @Override
        public void run() {
            final FileDocumentManager fileDocumentManager = FileDocumentManager.getInstance();
            if (fileDocumentManager.isFileModified(file)) {
                fileDocumentManager.saveDocument(document);
            }
        }
    }, project.getDisposed());
}