http服务端接口实例 c#post

HTTP服务端接口是一种通过HTTP协议提供服务的程序接口。下面是一个HTTP服务端接口的示例代码：

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>

int main() {
    int sockfd, newsockfd, portno, clilen;
    char buffer[1024];
    struct sockaddr_in serv_addr, cli_addr;
    int n;

    sockfd = socket(AF_INET, SOCK_STREAM, 0);
    if (sockfd < 0) {
        perror("ERROR opening socket");
        return 1;
    }

    memset((char *) &serv_addr, 0, sizeof(serv_addr));

    portno = 8080;

    serv_addr.sin_family = AF_INET;
    serv_addr.sin_addr.s_addr = INADDR_ANY;
    serv_addr.sin_port = htons(portno);

    if (bind(sockfd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0) {
        perror("ERROR on binding");
        return 1;
    }

    listen(sockfd, 5);

    clilen = sizeof(cli_addr);

    newsockfd = accept(sockfd, (struct sockaddr *) &cli_addr, &clilen);
    if (newsockfd < 0) {
        perror("ERROR on accept");
        return 1;
    }

    memset(buffer, 0, 1024);
    n = read(newsockfd, buffer, 1023);
    if (n < 0) {
        perror("ERROR reading from socket");
        return 1;
    }

    printf("Here is the message: %s\n", buffer);

    n = write(newsockfd, "I got your message", sizeof("I got your message"));
    if (n < 0) {
        perror("ERROR writing to socket");
        return 1;
    }

    close(newsockfd);
    close(sockfd);

    return 0;
}

上述代码实现了一个简单的HTTP服务端接口。它监听8080端口，接收来自客户端的HTTP请求，返回一个固定的响应消息"I got your message"，并将客户端发送的消息打印输出。