【8.1.7】更新一个devops部署的接口

pom.xml

@@ -12,7 +12,7 @@
 
     <groupId>cn.stylefeng</groupId>
     <artifactId>guns</artifactId>
-    <version>8.1.2</version>
+    <version>8.1.7</version>
 
     <name>guns</name>
     <description>Guns主项目</description>
@@ -24,7 +24,7 @@
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <java.version>1.8</java.version>
         <mysql-connector-java.version>8.0.21</mysql-connector-java.version>
-        <roses.kernel.version>8.1.2</roses.kernel.version>
+        <roses.kernel.version>8.1.7</roses.kernel.version>
         <flyway.version>7.1.1</flyway.version>
     </properties>
 

src/main/java/cn/stylefeng/guns/config/web/EmptyResourceFilter.java

@@ -0,0 +1,114 @@
+package cn.stylefeng.guns.config.web;
+
+import cn.hutool.core.io.resource.ResourceUtil;
+import cn.hutool.core.util.ObjectUtil;
+import cn.hutool.core.util.StrUtil;
+
+import javax.servlet.*;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.net.URL;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * 资源文件为空的过滤，针对css样式无法加载的问题
+ *
+ * @author fengshuonan
+ * @since 2024-04-23 16:12
+ */
+public class EmptyResourceFilter implements Filter {
+
+    /**
+     * 需要做缓存的资源，key是请求资源路径，value是否有空的资源文件，空的资源文件会直接返回空
+     */
+    private static final Map<String, Boolean> NEED_TO_CACHE_FLAG = new HashMap<>();
+
+    /**
+     * 资源样式前缀
+     */
+    public static final String GUNS_DEVOPS_ASSETS_PREFIX = "/guns-devops/assets";
+
+    @Override
+    public void init(FilterConfig filterConfig) throws ServletException {
+
+    }
+
+    @Override
+    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
+
+        // 1. 获取请求类
+        HttpServletRequest httpServletRequest = (HttpServletRequest) request;
+
+        // 2. 获取请求的路径，例如：/guns-devops/assets/css/style.css
+        String requestURI = httpServletRequest.getRequestURI();
+
+        // 3. 获取资源文件前缀，如果是资源文件前缀，则直接返回空
+        if (requestURI.startsWith(GUNS_DEVOPS_ASSETS_PREFIX)) {
+
+            // 先判断是否需要缓存
+            Boolean urlHasEmpty = NEED_TO_CACHE_FLAG.get(requestURI);
+            if (urlHasEmpty != null) {
+                if (urlHasEmpty) {
+                    this.doEmptyResourceReturn(response);
+                } else {
+                    chain.doFilter(request, response);
+                }
+                return;
+            }
+
+            // 获取资源文件路径
+            String resourcePath = StrUtil.removePrefix(requestURI, "/");
+            URL resource = ResourceUtil.getResource(resourcePath);
+
+            // 1. 资源文件不存在，直接返回，直接走404的逻辑
+            if (resource == null) {
+                chain.doFilter(request, response);
+
+                // 缓存一下结果
+                NEED_TO_CACHE_FLAG.put(requestURI, false);
+
+                return;
+            }
+
+            // 2. 资源文件存在，但是内容为空，直接返回空字符串
+            String content = ResourceUtil.readUtf8Str(resourcePath);
+            if (ObjectUtil.isEmpty(content)) {
+                doEmptyResourceReturn(response);
+
+                // 缓存一下结果
+                NEED_TO_CACHE_FLAG.put(requestURI, true);
+            }
+
+            // 3. 资源文件存在，内容不为空，直接返回内容
+            else {
+                chain.doFilter(request, response);
+
+                // 缓存一下结果
+                NEED_TO_CACHE_FLAG.put(requestURI, false);
+            }
+
+            return;
+        }
+
+        chain.doFilter(request, response);
+    }
+
+    /**
+     * 给http请求响应空字符串
+     *
+     * @author fengshuonan
+     * @since 2024-04-23 18:23
+     */
+    private void doEmptyResourceReturn(ServletResponse response) throws IOException {
+        HttpServletResponse httpServletResponse = (HttpServletResponse) response;
+        httpServletResponse.setStatus(HttpServletResponse.SC_OK);
+        httpServletResponse.getWriter().write("");
+    }
+
+    @Override
+    public void destroy() {
+        // Cleanup code
+    }
+}

src/main/java/cn/stylefeng/guns/config/web/SpringMvcConfiguration.java

@@ -5,6 +5,7 @@ import cn.stylefeng.guns.core.security.TokenAndPermissionInterceptor;
 import cn.stylefeng.roses.kernel.wrapper.field.jackson.CustomJacksonIntrospector;
 import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
 import org.springframework.boot.autoconfigure.jackson.Jackson2ObjectMapperBuilderCustomizer;
+import org.springframework.boot.web.servlet.FilterRegistrationBean;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Import;
@@ -76,4 +77,18 @@ public class SpringMvcConfiguration implements WebMvcConfigurer {
         registry.addResourceHandler("/guns-devops/**").addResourceLocations("classpath:/guns-devops/");
     }
 
+    /**
+     * 资源样式为空的过滤器
+     *
+     * @author fengshuonan
+     * @since 2024-04-23 16:12
+     */
+    @Bean
+    public FilterRegistrationBean<EmptyResourceFilter> filterRegistrationBean() {
+        FilterRegistrationBean<EmptyResourceFilter> registrationBean = new FilterRegistrationBean<>();
+        registrationBean.setFilter(new EmptyResourceFilter());
+        registrationBean.addUrlPatterns(EmptyResourceFilter.GUNS_DEVOPS_ASSETS_PREFIX + "/*");
+        return registrationBean;
+    }
+
 }

src/main/java/cn/stylefeng/guns/modular/deploy/IndexController.java

@@ -0,0 +1,49 @@
+package cn.stylefeng.guns.modular.deploy;
+
+
+import cn.hutool.core.io.IoUtil;
+import cn.hutool.core.io.resource.ResourceUtil;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+
+import javax.servlet.ServletOutputStream;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+
+/**
+ * 项目部署的控制器，直接jar包启动
+ *
+ * @author fengshuonan
+ * @since 2024-04-22 18:07
+ */
+@Controller
+public class IndexController {
+
+    /**
+     * devops访问的渲染
+     *
+     * @author fengshuonan
+     * @since 2024/6/4 18:31
+     */
+    @GetMapping("/guns-devops")
+    public void index(HttpServletResponse response) throws IOException {
+        renderIndex(response);
+    }
+
+    /**
+     * 渲染主页的操作
+     *
+     * @author fengshuonan
+     * @date 2022/10/23 15:02
+     */
+    private void renderIndex(HttpServletResponse response) throws IOException {
+        ServletOutputStream outputStream = response.getOutputStream();
+        response.addHeader("Content-Type", "text/html");
+        response.addHeader("Cache-Control", "no-cache");
+        response.addHeader("Cache-Control", "no-cache, no-store, private, must-revalidate, proxy-revalidate");
+        String indexContent = ResourceUtil.readStr("classpath:/guns-devops/index.html", StandardCharsets.UTF_8);
+        IoUtil.write(outputStream, StandardCharsets.UTF_8, true, indexContent);
+    }
+
+}