Java实现Web浏览器对ServerSocket服务器的简单资源访问

曾经终败给现在 2023-01-07 10:18 150阅读 0赞

服务器端功能编写：

package test;
    
    import java.io.BufferedReader;
    import java.io.FileInputStream;
    import java.io.IOException;
    import java.io.InputStream;
    import java.io.InputStreamReader;
    import java.io.OutputStream;
    import java.net.ServerSocket;
    import java.net.Socket;
    
    public class BSframe {
    
    	public static void main(String[] args) throws IOException {
    		ServerSocket server = new ServerSocket(8080); // 创建服务器套接字并指定端口号
    		while (true) { // 服务器保持监听状态以及时完成对请求的响应
    			final Socket socket = server.accept(); // 阻塞式等待客户端连接
    			InputStream inputStream = socket.getInputStream(); // 获取服务器端字节输入流
    			// 构建字节字符转换流并向其中传入字节输入流
    			InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
    			// 构建缓冲字符输入流并向其中传入字节字符转换流
    			BufferedReader bufferedReader = new BufferedReader(inputStreamReader);		
    			OutputStream outputStream = socket.getOutputStream(); // 获取服务器端字节输出流
    			String readLine = bufferedReader.readLine(); // 缓冲流读取数据
    			// System.out.println(readLine); // GET /web/index.html HTTP/1.1
    			String[] split = readLine.split(" "); // 根据请求头空格分隔字符串
    			String trim = split[1].trim().substring(1); // 获取请求资源路径
    			// System.out.println(trim); // web/index.html
    			// 构建文件字节输入流并根据获取的请求资源路径访问服务器资源
    			FileInputStream fileInputStream = new FileInputStream(trim);
    			if (trim.endsWith(".ico")) {
    				outputStream.write("HTTP/1.1 200 OK\r\n".getBytes());
    				outputStream.write("Content-Type:image/x-ico\r\n\r\n".getBytes());
    			} else if (trim.endsWith(".html")) {
    				outputStream.write("HTTP/1.1 200 OK\r\n".getBytes());
    				outputStream.write("Content-Type:text/html\r\n\r\n".getBytes());
    			} else if (trim.endsWith(".css")) {
    				outputStream.write("HTTP/1.1 200 OK\r\n".getBytes());
    				outputStream.write("Content-Type:text/css\r\n\r\n".getBytes());
    			}
    			byte[] buffer = new byte[1024];
    			int len = 0;
    			// 文件字节输入流依次读取资源数据
    			while ((len = fileInputStream.read(buffer)) != -1) {
    				outputStream.write(buffer, 0, len);
    			}
    			outputStream.close(); // 关闭流对象释放资源
    			
    			// 访问到的页面信息
    //			<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> 
    //			<% String path = request.getContextPath(); String basePath = request.getScheme()+
    //					"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> 
    //					This is my JSP page.
    			
    		}
    	}
    
    }

访问测试：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ0OTY1Mzkz_size_16_color_FFFFFF_t_70]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ0OTY1Mzkz_size_16_color_FFFFFF_t_70]: /images/20221119/f6af4d20389d44b9b94e366017ce752e.png