IDEA插入日志插件

plugin.xml

<idea-plugin>
    <id>com.your.company.unique.plugin.id</id>
    <name>Insert Logs</name>
    <version>1.0</version>
    <vendor email="support@yourcompany.com" url="http://www.yourcompany.com">YourCompany</vendor>

    <description><![CDATA[
      Enter short description for your plugin here.<br>
      <em>most HTML tags may be used</em>
    ]]></description>

    <change-notes><![CDATA[
      Add change notes here.<br>
      <em>most HTML tags may be used</em>
    ]]>
    </change-notes>

    <!-- please see https://www.jetbrains.org/intellij/sdk/docs/basics/getting_started/build_number_ranges.html for description -->
    <idea-version since-build="173.0"/>

    <!-- please see https://www.jetbrains.org/intellij/sdk/docs/basics/getting_started/plugin_compatibility.html
         on how to target different products -->
    <depends>com.intellij.modules.java</depends>
    <depends>com.intellij.modules.platform</depends>

    <extensions defaultExtensionNs="com.intellij">
        <!-- Add your extensions here -->
    </extensions>

    <actions>
        <group id="insertLogsActionGroup" text="InsertLogs" popup="true">
            <add-to-group group-id="EditorPopupMenu" anchor="first"/>
        </group>
        <!-- Add your actions here -->
        <action id="insert_logs" class="InsertLogsAction" text="前后插入日志" description="在执行方法前后插入日志">
            <add-to-group group-id="insertLogsActionGroup"/>
            <keyboard-shortcut keymap="$default" first-keystroke="alt L" second-keystroke="G"/>
        </action>
    </actions>

</idea-plugin>

InsertLogsAction.Java

import com.intellij.openapi.actionSystem.AnAction;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.actionSystem.CommonDataKeys;
import com.intellij.openapi.actionSystem.LangDataKeys;
import com.intellij.openapi.command.WriteCommandAction;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.project.Project;
import com.intellij.psi.*;
import com.intellij.psi.codeStyle.CodeStyleManager;

/**
 * @author hujiapeng3
 * @description
 * @date 2022/6/19 11:24
 */
public class InsertLogsAction extends AnAction {

    @Override
    public void actionPerformed(AnActionEvent e) {
        PsiFile psiFile = e.getData(LangDataKeys.PSI_FILE);
        if (!(psiFile instanceof PsiJavaFile)) {
            return;
        }
        PsiJavaFile psiJavaFile = (PsiJavaFile) psiFile;
        final Editor editor = e.getRequiredData(CommonDataKeys.EDITOR);
        //获取光标所在位置
        final int offset = editor.getCaretModel().getOffset();
        PsiElement element = psiFile.findElementAt(offset);
        final PsiElement methodCallerPsiEle = element.getParent();
        if (!(element instanceof PsiIdentifier)
                || !(methodCallerPsiEle instanceof PsiReferenceExpression)) {
            return;
        }
        final Project project = e.getProject();
        WriteCommandAction.runWriteCommandAction(project, () -> {
            final String methodExpression = methodCallerPsiEle.getParent().getText().replaceAll(" ", "").replaceAll(
                    "\n", "");
            final int left = methodExpression.indexOf("(");
            final int right = methodExpression.indexOf(")");
            if (!(left > 0 && right > 0 && (right - left) > 1)) {
                return;
            }
            String paramStr = methodExpression.substring(left + 1, right).replaceAll(" ", "");
            String[] params = paramStr.split(",");
            StringBuilder paramPosLogsSB = new StringBuilder();
            StringBuilder paramValLogsSB = new StringBuilder();
            for (String param : params) {
                if (paramPosLogsSB.length() > 0) {
                    paramPosLogsSB.append(",");
                    paramValLogsSB.append(",");
                }
                paramPosLogsSB.append("{}");
                paramValLogsSB.append("JSON.toJSONString(" + param + ")");
            }
            String preStr =
                    "log.info(\"" + methodExpression + "入参:" + paramPosLogsSB.toString() + "\"," + paramValLogsSB.toString() + ");";
            PsiLocalVariable localVarEle = null;
            PsiElement methodExpresionPsiEle = element;
            while (!(methodExpresionPsiEle.getParent() instanceof PsiCodeBlock)) {
                if (methodExpresionPsiEle instanceof PsiLocalVariable) {
                    localVarEle = (PsiLocalVariable) methodExpresionPsiEle;
                }
                methodExpresionPsiEle = methodExpresionPsiEle.getParent();
            }
            PsiElement codeBlock = methodExpresionPsiEle.getParent();
            final PsiElementFactory psiElementFactory = PsiElementFactory.getInstance(element.getProject());
            PsiElement newElement = psiElementFactory.createStatementFromText(preStr, element.getContext());
            codeBlock.addBefore(newElement, methodExpresionPsiEle);
            if (localVarEle != null) {
                final String tempExp = methodCallerPsiEle.getText().replaceAll(" ", "");
                String afterStr =
                        "log.info(\"" + tempExp + "出参:{}\",JSON.toJSONString(" + localVarEle.getName() +
                                "));";
                newElement = psiElementFactory.createStatementFromText(afterStr, element.getContext());
                codeBlock.addAfter(newElement, methodExpresionPsiEle);
            }
        });
        CodeStyleManager codeStyleManager = CodeStyleManager.getInstance(project);
        codeStyleManager.reformat(psiJavaFile);
    }
}