feat(ui): support show update button

boot/src/main/java/com/reajason/javaweb/boot/config/WebConfig.java

@@ -0,0 +1,21 @@
+package com.reajason.javaweb.boot.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.http.client.SimpleClientHttpRequestFactory;
+import org.springframework.web.client.RestTemplate;
+
+/**
+ * @author ReaJason
+ */
+@Configuration
+public class WebConfig {
+
+    @Bean
+    public RestTemplate restTemplate() {
+        SimpleClientHttpRequestFactory factory = new SimpleClientHttpRequestFactory();
+        factory.setConnectTimeout(3000);
+        factory.setReadTimeout(3000);
+        return new RestTemplate(factory);
+    }
+} 

boot/src/main/java/com/reajason/javaweb/boot/controller/VersionController.java

@@ -1,10 +1,20 @@
 package com.reajason.javaweb.boot.controller;
 
+import com.reajason.javaweb.boot.entity.VersionInfo;
 import org.springframework.beans.factory.annotation.Value;
+import org.springframework.core.ParameterizedTypeReference;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.CrossOrigin;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.client.RestTemplate;
+import org.thymeleaf.util.StringUtils;
+
+import java.util.List;
+import java.util.Map;
 
 /**
  * @author ReaJason
@@ -16,10 +26,61 @@ import org.springframework.web.bind.annotation.RestController;
 public class VersionController {
 
     @Value("${spring.application.version}")
-    String version;
+    private String version;
+
+    private final RestTemplate restTemplate;
+
+    public VersionController(RestTemplate restTemplate) {
+        this.restTemplate = restTemplate;
+    }
 
     @GetMapping
-    public String version() {
+    public VersionInfo version() {
+        String latestVersion = getLatestGithubRelease();
+        return VersionInfo.builder()
+                .currentVersion(version)
+                .latestVersion(latestVersion)
+                .hasUpdate(!StringUtils.equals(version, latestVersion))
+                .build();
+    }
+
+    private String getLatestGithubRelease() {
+        try {
+            String latestVersion = tryFetchRelease("https://api.github.com");
+            if (latestVersion != null) {
+                return latestVersion;
+            }
+            latestVersion = tryFetchRelease("https://gh.llkk.cc/https://api.github.com");
+            if (latestVersion != null) {
+                return latestVersion;
+            }
+        } catch (Exception ignored) {
+        }
         return version;
     }
+
+    private String tryFetchRelease(String baseUrl) {
+        String apiUrl = String.format("%s/repos/%s/%s/releases", baseUrl, "ReaJason", "MemShellParty");
+
+        ResponseEntity<List<Map<String, Object>>> response = restTemplate.exchange(
+                apiUrl,
+                HttpMethod.GET,
+                null,
+                new ParameterizedTypeReference<>() {
+                }
+        );
+        if (response.getStatusCode() == HttpStatus.OK && response.getBody() != null) {
+            List<Map<String, Object>> body = response.getBody();
+            for (Map<String, Object> map : body) {
+                String targetCommitish = (String) map.get("target_commitish");
+                Boolean prerelease = (Boolean) map.get("prerelease");
+                Boolean draft = (Boolean) map.get("draft");
+                if ("master".equals(targetCommitish) && !prerelease && !draft) {
+                    String tagName = (String) map.get("name");
+                    return tagName.startsWith("v") ? tagName.substring(1) : tagName;
+                }
+            }
+        }
+        return null;
+    }
 }

boot/src/main/java/com/reajason/javaweb/boot/entity/VersionInfo.java

@@ -0,0 +1,15 @@
+package com.reajason.javaweb.boot.entity;
+
+import lombok.Data;
+import lombok.Builder;
+
+/**
+ * @author ReaJason
+ */
+@Data
+@Builder
+public class VersionInfo {
+    private String currentVersion;
+    private String latestVersion;
+    private boolean hasUpdate;
+}