解决jar模式代码生成器模板找不到的问题

jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/config/init/CodeTemplateInitListener.java

@@ -0,0 +1,66 @@
+package org.jeecg.config.init;
+
+import cn.hutool.core.io.FileUtil;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.io.IOUtils;
+import org.springframework.boot.context.event.ApplicationReadyEvent;
+import org.springframework.context.ApplicationListener;
+import org.springframework.core.io.Resource;
+import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
+import org.springframework.stereotype.Component;
+
+import java.io.File;
+import java.net.URL;
+import java.nio.charset.StandardCharsets;
+
+/**
+ * 自动初始化代码生成器模板
+ * <p>
+ * 解决JAR发布需要手工配置代码生成器模板问题
+ * http://doc.jeecg.com/2043922
+ */
+@Slf4j
+@Component
+public class CodeTemplateInitListener implements ApplicationListener<ApplicationReadyEvent> {
+
+    @Override
+    public void onApplicationEvent(ApplicationReadyEvent event) {
+        try {
+            log.info(" --- 检测启动环境： 如果是JAR模式，则初始化生成器模板到config目录中 --- ");
+            this.initJarConfigCodeGeneratorTemplate();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    /**
+     * ::Jar包启动模式下::
+     * 初始化代码生成器模板文件
+     */
+    private void initJarConfigCodeGeneratorTemplate() throws Exception {
+        //1.获取jar同级下的config路径
+        String configPath = System.getProperty("user.dir") + File.separator + "config" + File.separator;
+        PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
+        Resource[] resources = resolver.getResources("classpath*:jeecg/code-template-online/**/*");
+        for (Resource re : resources) {
+            URL url = re.getURL();
+            String filepath = url.getPath();
+            //System.out.println("native url= " + filepath);
+            filepath = java.net.URLDecoder.decode(filepath, "utf-8");
+            //System.out.println("decode url= " + filepath);
+
+            //2.在config下，创建jeecg/code-template-online/*模板
+            String createFilePath = configPath + filepath.substring(filepath.indexOf("jeecg/code-template-online"));
+
+            // 非jar模式不生成模板
+            // 不生成目录，只生成具体模板文件
+            if (!filepath.contains(".jar!/BOOT-INF/lib/") || !createFilePath.contains(".")) {
+                continue;
+            }
+            if (!FileUtil.exist(createFilePath)) {
+                log.debug("create file codeTemplate = " + createFilePath);
+                FileUtil.writeString(IOUtils.toString(url, StandardCharsets.UTF_8), createFilePath, "UTF-8");
+            }
+        }
+    }
+}