Idea插件添加EditorPopupMenu显示JAVA对象的

第一步:创建IntelliJ Platform Plugin工程 new->->IntelliJ Platform Plugin

第二步:右击Project new Action

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第三步:编辑JAVABeanToJSONAction类写代码

import com.intellij.openapi.actionSystem.AnAction;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.actionSystem.LangDataKeys;
import com.intellij.openapi.actionSystem.PlatformDataKeys;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.ui.Messages;
import com.intellij.openapi.ui.popup.Balloon;
import com.intellij.openapi.ui.popup.JBPopupFactory;
import com.intellij.psi.*;
import com.intellij.ui.JBColor;

import java.awt.*;

/**
 * Created by Administrator on 2019/8/20.
 */
public class JAVABeanToJSONAction extends AnAction {

    @Override
    public void actionPerformed(AnActionEvent event) {
        Editor editor = event.getData(PlatformDataKeys.EDITOR);
        PsiFile psiFile = event.getData(LangDataKeys.PSI_FILE);
        //只读文件直接返回
        if( psiFile.getFileType().isReadOnly()){
            return;
        }
        //不是JAVA类直接返回
        if(!psiFile.getVirtualFile().getName().contains(".java")){
            return;
        }
        Messages.showInfoMessage(editor.getProject(),psiFile.getVirtualFile().getName(),"");
        // 遍历当前对象的所有属性
        for (PsiElement psiElement : psiFile.getChildren()) {
            System.out.println(psiElement);
            if (psiElement instanceof PsiClass) {
                PsiClass psiClass = (PsiClass) psiElement;
                String json = genJsonStringForPsiClass(psiClass);
                showPopupBalloon(editor, json);
            }
        }
    }

    private String genJsonStringForPsiClass(PsiClass psiClass){
        StringBuilder sbd=new StringBuilder("{");
       PsiField[] psiFields= psiClass.getAllFields();
       if(null!=psiFields&&psiFields.length>0){
           for(int i=0,size=psiFields.length;i<size;i++){
              String name= psiFields[i].getName();
              sbd.append('"').append(name).append('"');
              sbd.append(":").append('"').append('"');
              if(i!=size-1){
                  sbd.append(",");
              }
           }
       }
       return  sbd.append("}").toString();
    }

    private void showPopupBalloon(final Editor editor, final String result) {
        ApplicationManager.getApplication().invokeLater(new Runnable() {
            public void run() {
                JBPopupFactory factory = JBPopupFactory.getInstance();
                factory.createHtmlTextBalloonBuilder(result, null, new JBColor(new Color(186, 238, 186), new Color(73, 117, 73)), null)
                        .setFadeoutTime(5000)
                        .createBalloon()
                        .show(factory.guessBestPopupLocation(editor), Balloon.Position.below);
            }
        });
    }

}

第四步:build插件工程

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第五步:install plugin from Desk,完成之后重启IDEA

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重启之后点击任何JAVA类右击之后会出现一个子菜单

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效果图如下:

图片.png