修复删除文件后再重新创建会导致索引异常，采用替换文件的方案来解决。

build.gradle

@@ -25,7 +25,7 @@ apply plugin: 'java'
 apply plugin: 'org.jetbrains.intellij'
 
 group 'com.sjhy'
-version '1.2.3-RELEASE'
+version '1.2.4-SNAPSHOT'
 
 sourceCompatibility = JavaVersion.VERSION_1_8
 targetCompatibility = JavaVersion.VERSION_1_8

src/main/java/com/sjhy/plugin/service/impl/CodeGenerateServiceImpl.java

@@ -8,6 +8,7 @@ import com.intellij.openapi.project.Project;
 import com.intellij.openapi.ui.MessageDialogBuilder;
 import com.intellij.openapi.ui.Messages;
 import com.intellij.openapi.vfs.VirtualFileManager;
+import com.intellij.psi.PsiFile;
 import com.sjhy.plugin.config.Settings;
 import com.sjhy.plugin.constants.MsgValue;
 import com.sjhy.plugin.entity.Callback;
@@ -138,7 +139,7 @@ public class CodeGenerateServiceImpl implements CodeGenerateService {
             setModulePathAndImportList(param, tableInfo);
             // 设置额外代码生成服务
             param.put("generateService", new ExtraCodeGenerateUtils(this, tableInfo, title));
-
+            List<PsiFile> psiFileList = new ArrayList<>();
             for (Template template : templates) {
                 Callback callback = new Callback();
                 // 设置回调对象
@@ -180,8 +181,13 @@ public class CodeGenerateServiceImpl implements CodeGenerateService {
                     }
                 }
                 // 保存文件
-                fileUtils.write(project, file, code, callback.isReformat());
+                PsiFile psiFile = fileUtils.write(project, file, code);
+                if (psiFile != null && callback.isReformat()) {
+                    psiFileList.add(psiFile);
+                }
             }
+            // 统一格式化
+            fileUtils.reformatFile(project, psiFileList);
         }
         //刷新整个项目
         VirtualFileManager.getInstance().syncRefresh();

src/main/java/com/sjhy/plugin/service/impl/TableInfoServiceImpl.java

@@ -10,6 +10,7 @@ import com.intellij.openapi.project.Project;
 import com.intellij.openapi.ui.MessageDialogBuilder;
 import com.intellij.openapi.ui.Messages;
 import com.intellij.openapi.vfs.VirtualFileManager;
+import com.intellij.psi.PsiFile;
 import com.intellij.util.ExceptionUtil;
 import com.intellij.util.containers.JBIterable;
 import com.sjhy.plugin.constants.MsgValue;
@@ -335,7 +336,10 @@ public class TableInfoServiceImpl implements TableInfoService {
         // 获取保存文件
         File file = new File(dir, getConfigFileName(oldTableInfo.getObj()));
         //写入配置文件
-        fileUtils.write(project, file, content, true);
+        PsiFile psiFile = fileUtils.write(project, file, content);
+        if (psiFile != null) {
+            fileUtils.reformatFile(project, Collections.singletonList(psiFile));
+        }
         // 同步刷新
         VirtualFileManager.getInstance().syncRefresh();
     }

src/main/java/com/sjhy/plugin/tool/FileUtils.java

@@ -4,9 +4,12 @@ import com.intellij.codeInsight.actions.AbstractLayoutCodeProcessor;
 import com.intellij.codeInsight.actions.OptimizeImportsProcessor;
 import com.intellij.codeInsight.actions.ReformatCodeProcessor;
 import com.intellij.openapi.command.WriteCommandAction;
+import com.intellij.openapi.diagnostic.Logger;
+import com.intellij.openapi.editor.Document;
 import com.intellij.openapi.fileTypes.FileTypes;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.ui.Messages;
+import com.intellij.openapi.util.Computable;
 import com.intellij.openapi.vfs.LocalFileSystem;
 import com.intellij.openapi.vfs.VirtualFile;
 import com.intellij.psi.*;
@@ -16,6 +19,7 @@ import com.sjhy.plugin.constants.MsgValue;
 import java.io.File;
 import java.lang.reflect.Constructor;
 import java.lang.reflect.InvocationTargetException;
+import java.util.List;
 
 /**
  * 文件工具类
@@ -25,6 +29,7 @@ import java.lang.reflect.InvocationTargetException;
  * @since 2018/07/17 13:10
  */
 public class FileUtils {
+    private static final Logger LOG = Logger.getInstance(FileUtils.class);
     private static volatile FileUtils fileUtils;
 
     /**
@@ -47,8 +52,8 @@ public class FileUtils {
     /**
      * 读取文件内容（文本文件）
      *
-     * @param project  项目对象
+     * @param project 项目对象
-     * @param file 文件对象
+     * @param file    文件对象
      * @return 文件内容
      */
     public String read(Project project, File file) {
@@ -70,9 +75,8 @@ public class FileUtils {
      * @param project  项目对象
      * @param file     文件
      * @param content  文件内容
-     * @param reformat 是否对代码进行重新格式化
      */
-    public void write(Project project, File file, String content, boolean reformat) {
+    public PsiFile write(Project project, File file, String content) {
         // 替换换行符
         content = content.replace("\r\n", "\n");
         // 创建文件
@@ -83,10 +87,45 @@ public class FileUtils {
         if (parentVirtualFile == null) {
             // 自动创建目录
             Messages.showWarningDialog("目录不存在", MsgValue.TITLE_INFO);
-            return;
+            return null;
         }
         PsiDirectory psiDirectory = psiManager.findDirectory(parentVirtualFile);
-        saveFileAndFormatCode(project, psiDirectory, psiFile, reformat);
+        return saveFileAndFormatCode(project, psiDirectory, psiFile);
+    }
+
+    /**
+     * 执行格式化
+     *
+     * @param project     项目对象
+     * @param psiFileList 文件列表
+     */
+    @SuppressWarnings("unchecked")
+    public void reformatFile(Project project, List<PsiFile> psiFileList) {
+        if (CollectionUtil.isEmpty(psiFileList)) {
+            return;
+        }
+        // 提交所有改动，并非CVS中的提交文件
+        PsiDocumentManager.getInstance(project).commitAllDocuments();
+        // 尝试对文件进行格式化处理
+        AbstractLayoutCodeProcessor processor = new ReformatCodeProcessor(project, psiFileList.toArray(new PsiFile[0]), null, false);
+        // 优化导入
+        processor = new OptimizeImportsProcessor(processor);
+        // 重新编排代码（会将代码中的属性与方法的顺序进行重新调整）
+//            processor = new RearrangeCodeProcessor(processor);
+
+        // 清理代码，进行旧版本兼容，旧版本的IDEA尚未提供该处理器
+        try {
+            Class<AbstractLayoutCodeProcessor> codeCleanupCodeProcessorCls = (Class<AbstractLayoutCodeProcessor>) Class.forName("com.intellij.codeInsight.actions.CodeCleanupCodeProcessor");
+            Constructor<AbstractLayoutCodeProcessor> constructor = codeCleanupCodeProcessorCls.getConstructor(AbstractLayoutCodeProcessor.class);
+            processor = constructor.newInstance(processor);
+        } catch (ClassNotFoundException ignored) {
+            // 类不存在直接忽略
+        } catch (NoSuchMethodException | IllegalAccessException | InstantiationException | InvocationTargetException e) {
+            // 抛出未知异常
+            ExceptionUtil.rethrow(e);
+        }
+        // 执行处理
+        processor.run();
     }
 
     /**
@@ -95,42 +134,21 @@ public class FileUtils {
      * @param project      项目
      * @param psiDirectory 目录
      * @param psiFile      文件
-     * @param reformat 是否对代码进行重新格式化
      */
-    @SuppressWarnings("unchecked")
+    private PsiFile saveFileAndFormatCode(Project project, PsiDirectory psiDirectory, PsiFile psiFile) {
-    private void saveFileAndFormatCode(Project project, PsiDirectory psiDirectory, PsiFile psiFile, boolean reformat) {
+        return WriteCommandAction.runWriteCommandAction(project, (Computable<PsiFile>) () -> {
-        WriteCommandAction.runWriteCommandAction(project, () -> {
             PsiFile oldFile = psiDirectory.findFile(psiFile.getName());
+            PsiFile temFile;
             if (oldFile != null) {
-                oldFile.delete();
+                Document document = PsiDocumentManager.getInstance(project).getDocument(oldFile);
+                LOG.assertTrue(document != null);
+                // 替换文件
+                document.setText(psiFile.getText());
+                temFile = oldFile;
+            } else {
+                temFile = (PsiFile) psiDirectory.add(psiFile);
             }
-            PsiFile newFile = (PsiFile) psiDirectory.add(psiFile);
+            return temFile;
-            // 提交所有改动，并非CVS中的提交文件
-            PsiDocumentManager.getInstance(project).commitAllDocuments();
-            // 判断是否需要格式化代码
-            if (!reformat) {
-                return;
-            }
-            // 尝试对文件进行格式化处理
-            AbstractLayoutCodeProcessor processor = new ReformatCodeProcessor(project, new PsiFile[]{newFile}, null, false);
-            // 优化导入
-            processor = new OptimizeImportsProcessor(processor);
-            // 重新编排代码（会将代码中的属性与方法的顺序进行重新调整）
-//            processor = new RearrangeCodeProcessor(processor);
-
-            // 清理代码，进行旧版本兼容，旧版本的IDEA尚未提供该处理器
-            try {
-                Class<AbstractLayoutCodeProcessor> codeCleanupCodeProcessorCls = (Class<AbstractLayoutCodeProcessor>) Class.forName("com.intellij.codeInsight.actions.CodeCleanupCodeProcessor");
-                Constructor<AbstractLayoutCodeProcessor> constructor = codeCleanupCodeProcessorCls.getConstructor(AbstractLayoutCodeProcessor.class);
-                processor = constructor.newInstance(processor);
-            } catch (ClassNotFoundException ignored) {
-                // 类不存在直接忽略
-            } catch (NoSuchMethodException | IllegalAccessException | InstantiationException | InvocationTargetException e) {
-                // 抛出未知异常
-                ExceptionUtil.rethrow(e);
-            }
-            // 执行处理
-            processor.run();
         });
     }
 }

src/main/resources/META-INF/plugin.xml

@@ -1,6 +1,7 @@
 <idea-plugin>
     <id>com.sjhy.plugin.easycode</id>
-    <vendor email="1353036300@qq.com" url="http://www.shujuhaiyang.com">数据海洋</vendor>
+    <name>Easy Code</name>
+    <vendor email="1353036300@qq.com" url="http://www.shujuhaiyang.com">Easy Code Office Website</vendor>
 
     <description><![CDATA[
       <tag>EasyCode,Easy Code,easy,code,code generate,code tools</tag>