Merge pull request 'develop四人注释完到master里' (#15) from develop into master

src-源文件/main/java/com/yf/exam/ExamApplication.java

@@ -1,17 +1,17 @@
-package com.yf.exam;
+package com.yf.exam;  // 定义包路径
 
-import com.yf.exam.core.api.utils.JsonConverter;
-import lombok.extern.log4j.Log4j2;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-import org.springframework.context.ConfigurableApplicationContext;
-import org.springframework.core.env.Environment;
-import org.springframework.http.converter.HttpMessageConverter;
-import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+import com.yf.exam.core.api.utils.JsonConverter;  // 导入JsonConverter工具类
+import lombok.extern.log4j.Log4j2;  // 导入log4j2日志工具
+import org.springframework.boot.SpringApplication;  // 导入Spring Boot的SpringApplication类
+import org.springframework.boot.autoconfigure.SpringBootApplication;  // 导入SpringBoot应用的启动注解
+import org.springframework.context.ConfigurableApplicationContext;  // 导入Spring上下文配置类
+import org.springframework.core.env.Environment;  // 导入Spring环境配置类
+import org.springframework.http.converter.HttpMessageConverter;  // 导入HTTP消息转换器接口
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;  // 导入Web MVC配置接口
 
-import java.net.InetAddress;
-import java.net.UnknownHostException;
-import java.util.List;
+import java.net.InetAddress;  // 导入InetAddress类用于获取IP地址
+import java.net.UnknownHostException;  // 导入UnknownHostException异常类
+import java.util.List;  // 导入List集合类
 
 /**
  * 云帆在线考试系统
@@ -19,23 +19,28 @@ import java.util.List;
  * @email 18365918@qq.com
  * @date 2020-03-04 19:41
  */
-@Log4j2
-@SpringBootApplication
-public class ExamApplication implements WebMvcConfigurer {
+@Log4j2  // 使用log4j2进行日志记录
+@SpringBootApplication  // 声明一个Spring Boot应用程序
+public class ExamApplication implements WebMvcConfigurer {  // 实现WebMvcConfigurer接口，定制MVC配置
 
-	public static void main(String[] args) throws UnknownHostException {
+	public static void main(String[] args) throws UnknownHostException {  // 主方法，应用程序入口
+		// 启动Spring Boot应用，获取应用上下文
 		ConfigurableApplicationContext application = SpringApplication.run(ExamApplication.class, args);
+		// 获取环境配置信息
 		Environment env = application.getEnvironment();
+		// 获取本机IP地址
 		String ip = InetAddress.getLocalHost().getHostAddress();
+		// 获取端口号
 		String port = env.getProperty("server.port");
+		// 获取上下文路径
 		String path = env.getProperty("server.servlet.context-path");
 
-		// 未配置默认空白
+		// 如果没有配置路径，则默认为空字符串
 		if(path == null){
 			path = "";
 		}
 
-
+		// 输出启动信息到日志
 		log.info("\n----------------------------------------------------------\n\t" +
 				"云帆考试系统启动成功，访问路径如下:\n\t" +
 				"本地路径: \t\thttp://localhost:" + port + path + "/\n\t" +
@@ -45,9 +50,8 @@ public class ExamApplication implements WebMvcConfigurer {
 	}
 
 	@Override
-	public void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
-		//保留原有converter,把新增fastConverter插入集合头,保证优先级
+	public void extendMessageConverters(List<HttpMessageConverter<?>> converters) {  // 扩展Spring MVC的消息转换器
+		// 保留原有的消息转换器，将新的fastConverter插入到集合的头部，确保其优先级
 		converters.add(0, JsonConverter.fastConverter());
 	}
-
-}
+}