Java代码实现Socket的WEB服务器开发教程

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资源摘要信息: "Java实现Socket创建WEB服务器代码" 知识点： 1. Java语言基础：Java是一种广泛使用的编程语言，用于开发各种应用程序。在这个资源中，Java被用于编写服务器端代码以创建一个WEB服务器。 2. WEB服务器：WEB服务器是指计算机网络上的一台设备，负责处理客户端发出的HTTP请求，并提供相应的内容。WEB服务器可以是硬件也可以是软件。在此资源中，Java代码将被用来实现一个WEB服务器的功能。 3. Socket通信：Socket是网络通信的基本构件，提供了一种让两个程序间进行双向数据传输的方式。在Java中，创建Socket通常涉及到***.Socket类。本资源描述了如何使用Socket技术来实现WEB服务器的通信功能。 4. TCP/IP协议：传输控制协议/互联网协议（TCP/IP）是互联网的基础协议，负责提供可靠的网络数据传输服务。TCP/IP协议保证了数据包的顺序、完整性和可靠性，是实现Socket通信的基础。 5. HTTP协议：超文本传输协议（HTTP）是一种用于分布式、协作式和超媒体信息系统的应用层协议。它是一种无状态协议，常用于WEB浏览器和服务器之间的通信。本资源中通过Socket实现的WEB服务器将处理HTTP请求。 6. Java网络编程：Java网络编程允许程序通过网络进行数据的发送和接收。核心类库中的***包提供了丰富的网络功能，包括Socket、ServerSocket、URL、URLConnection等。 7. ServerSocket类：***.ServerSocket类用于实现一个网络服务端，它监听特定端口的Socket连接。在这个资源中，Java代码通过ServerSocket类创建了一个监听器，等待客户端请求。 8. 多线程：Java支持多线程编程，这允许同时执行两个或多个部分代码。在WEB服务器中，每个新连接都可以启动一个新的线程，这样可以同时处理多个客户端请求。 9. 输入输出流（I/O流）：Java I/O流用于处理数据的读取和写入。在本资源中，涉及到使用输入输出流来处理来自客户端的请求数据和发送响应数据到客户端。 10. 端口号：端口号是一个逻辑概念，用于区分服务器上不同的服务。在创建WEB服务器时，需要选择一个未被其他程序占用的端口号，以便监听来自客户端的请求。 11. 资源文件管理：Java文件可以被压缩成RAR格式，便于管理和传输。在本资源中，Java源代码文件被压缩成一个RAR文件。 通过上述知识点，可以了解到Java实现Socket创建WEB服务器的全过程，以及涉及的技术和概念。这个过程不仅需要理解网络通信的底层原理，还需要掌握Java编程语言和网络编程接口。实现一个WEB服务器不是简单的任务，它需要深入理解多线程编程、网络通信协议以及I/O流的使用，同时还要确保代码的安全性和效率。

Web_Server_C++.zip_Server Error_This Just In.._web server

2022-09-24 上传
This is just a simple multithreaded web server using CSocket. It s good beginer code, basicly my first program in C. It does create an error if you make too many really fast connections, thats why I m...

U盘格式化工具_iFormat_v309_Icreate.rar

2009-11-11 上传
U盘格式化工具_iFormat_v309_Icreate.rar U盘格式化工具_iFormat_v309_Icreate.rar U盘格式化工具_iFormat_v309_Icreate.rar U盘格式化工具_iFormat_v309_Icreate.rar

优化这个sql SELECT count( 1 ) FROM ( SELECT B.ID, B.PURCHASE_REQUEST_ID, B.MATERIAL_ID, B.MATERIAL_CODE, B.MATERIAL_NAME, B.STANDARD, B.MODEL_ID, B.BILL_ROW_ID, B.BILL_NO, BILL_NAME, B.MODEL_CODE, B.MODEL_NAME, B.PARENT_MODEL_ID, B.PARENT_MODEL_CODE, B.PARENT_MODEL_NAME, B.UNIT_CODE, B.UNIT_NAME, B.PURCHASE_TYPE_CODE, CAST( NVL( B.APPLY_NUM, 0 ) AS NUMBER ( 24, 10 ) ) AS APPLY_NUM, CAST( NVL( B.DEAL_NUM, 0 ) AS NUMBER ( 24, 10 ) ) AS DEAL_NUM, CAST( NVL( B.RETURN_NUM, 0 ) AS NUMBER ( 24, 10 ) ) AS RETURN_NUM, B.DEAL_USER_ID, B.DEAL_USER_NAME, CAST( NVL( B.PRICE, 0 ) AS NUMBER ( 24, 10 ) ) AS PRICE, CAST( NVL( B.AMOUNT, 0 ) AS NUMBER ( 24, 10 ) ) AMOUNT, B.IMPLEMENT_CODE, B.IMPLEMENT_NAME, B.IMPLEMENT_INVEST_AMOUNT, B.PURCHASE_MANAGER_ID, B.PURCHASE_MANAGER_NAME, B.PROVIDER_ID, B.PROVIDER_NAME, B.REMARK, B.DELIVER_AREA, B.DELIVER_ADDRESS, B.RECEIVE_PEOPLE, B.RECEIVE_PEOPLE_PHONE, B.ITEM_STATUS, B.COST_CENTER, B.COST_BUDGET_CODE, B.COST_IMPLEMENT_NAME, B.FRAME_CONT_ID, B.FRAME_CONT_CODE, B.FRAME_CONT_NAME, B.DETAIL_CONFIG, B.PURCHASE_CATEGORY_CODE, B.INVOICE_TITLE_CODE, B.INVOICE_SEND_ADDRRSS, B.MATERIAL_REQUEST_ITEM_ID, B.YEAR, B.DELETE_FLAG, B.PROVINCE_CODE, B.REASON, B.PARENT_ITEM_ID, B.FRAME_CONT_ITEM_ID, B.SUB_MATERIAL_REQUEST_ID, B.SUB_MATERIAL_REQUEST_CODE, B.MATERIAL_URL, B.RECOMMEND_PROVIDER_NAMES, C.PURCHASE_REQUEST_CODE, C.PURCHASE_REQUEST_NAME, C.APPLY_TYPE_CODE, C.CREATOR_NAME, C.APPLY_TELEPHONE, C.COMPANY_NAME, C.DEPT_NAME, B.CREATE_TIME, TO_CHAR( B.CREATE_TIME, 'YYYY-MM-DD' ) CREATE_TIME_STR, C.ARRIVE_TIME, C.IS_TO_END, C.MONEY_WAY_CODE, C.OWN, C.APPLY_CATEGORY_CODE, C.manu_Type, C.BILL_ID, MMD.MATERIAL_TYPE_CODE, B.BRANCH_COMPANY_DEAL_USER_ID, B.BRANCH_COMPANY_DEAL_USER_NAME, ( SELECT ORG_NAME FROM ORGANIZATIONS WHERE DELETE_FLAG = '0' AND ORG_CODE = ( SELECT PARENT_COMPANY_NO FROM ORGANIZATIONS WHERE ID = B.MATERIAL_DEPT_ID )) AS MATERIAL_COMPANY_NAME, B.ORIGINAL, B.PROVIDER_PRODUCT_MODEL, B.PROVIDER_PRODUCT_NAME, B.PRODUCT_DESC, B.Back_Flag, CASE WHEN MMD.material_type_code = 'WZ' THEN '1' WHEN MMD.material_type_code = 'FW' THEN '2' ELSE '3' END apply_category_code_item, NVL( C.IS_CARDSYSTEM_REQUEST, '0' ) IS_CARDSYSTEM_REQUEST, B.APPLY_GROUP_AUTHORITES, B.SCIENTIFIC_RESEARCH_ID, B.SCIENTIFIC_RESEARCH_CODE, B.SCIENTIFIC_RESEARCH_NAME, B.PREQUALFY_CODE, nvl( C.IS_QUICK, '0' ) AS IS_QUICK, C.PURCHASE_WAY_CODE, C.PURCHASE_TYPE_CODE PURCHASE_TYPE_CODE_P, C.ORIGINAL_TYPE, C.PURCHASE_REQUEST_BILLS_TYPE, B.IS_FRAME_CONT_MONAD FROM PURCHASE_REQUEST_ITEM B LEFT JOIN PURCHASE_REQUEST C ON B.PURCHASE_REQUEST_ID = C.ID LEFT JOIN MATERIAL_DATA MMD ON MMD.ID = B.MATERIAL_ID AND MMD.DELETE_FLAG = '0' WHERE B.delete_flag = '0' AND B.Item_Status IN ( 1 ) AND NOT EXISTS ( SELECT * FROM purchase_request_item_log pril WHERE B.id = pril.purchase_request_item_id AND pril.lock_status = '1' AND pril.delete_flag = '0' ) AND ( ( c.apply_type_code NOT IN ( '20', '41', '3' ) AND nvl( B.Apply_Num, 0 ) > nvl( B.Deal_Num, 0 )) OR c.apply_type_code IN ( '20', '41', '3' ) ) AND B.Deal_User_Id =: 1 AND C.MONEY_WAY_CODE =: 2 AND C.APPLY_TYPE_CODE =: 3 AND C.PAY_OUT_TYPE_CODE =: 4 AND C.APPLY_CATEGORY_CODE =: 5 AND NVL( C.IS_CARDSYSTEM_REQUEST, '0' ) = : 6 AND NOT EXISTS ( SELECT * FROM purchase_request_item p left join material_province mp ON p.material_id = mp.material_id WHERE p.delete_flag = 0 AND mp.delete_flag = 0 AND mp.material_status = 03 AND mp.org_code = p.province_code AND p.id = B.id ) ORDER BY C.ID, B.ID ASC)

2023-06-08 上传
TO_CHAR(b.CREATE_TIME, 'YYYY-MM-DD') CREATE_TIME_STR, c.ARRIVE_TIME, c.IS_TO_END, c.MONEY_WAY_CODE, c.OWN, c.APPLY_CATEGORY_CODE, c.manu_Type, c.BILL_ID, MMD.MATERIAL_TYPE_CODE, b.BRANCH_...

优化这段代码import socketimport datetime# 服务器地址和端口号server_address = ('localhost', 8888)# 创建socket对象server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)# 绑定地址和端口号server_socket.bind(server_address)# 开始监听server_socket.listen(1)# 打印提示信息print('Server is listening...')while True: # 等待客户端连接 client_socket, client_address = server_socket.accept() # 打印客户端地址 print('Client address:', client_address) # 接收客户端请求 request = client_socket.recv(1024).decode() if request == 'time': # 获取当前时间 now = datetime.datetime.now() # 将时间转换为字符串 response = now.strftime('%Y-%m-%d %H:%M:%S') # 发送响应 client_socket.send(response.encode()) # 关闭客户端连接 client_socket.close()

2023-05-31 上传
server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) # 绑定地址和端口号 server_socket.bind(server_address) # 开始监听 server_socket.listen(5) # 打印提示信息 print('Server is listening....

优化以下SQL select pao.id, pao.order_no, pao.apply_time, pao.purchase_user_id, pao.purchase_user_name, pao.apply_user_id, pao.apply_user_name, pao.apply_department_id, pao.apply_department_name, pao.apply_end_time, pao.create_user_id, pao.create_user_name, pao.approve_type, pao.approve_user_id, pao.approve_user_name, pao.approve_time, pao.description, pao.order_type, pao.purchase_type, pao.storage_type, pao.compose_order_no, pao.company_id, pao.delete, pao.create_time, pao.update_time, pao.supplier_id, pao.image_path, pao.contract_id, pao.status, pao.invoice_signer_name, pao.total_amount, pao.total_amount_tax, pao.purchase_status, pao.cancel_reason, pao.print_status, pao.demand_id, pao.arrival_status, pao.supervise_num, pao.supervise_date, pao.merge_apply_id, pao.deadline, pao.remind , s.name as supplierName, paod.amount, cm.return_status as returnStatus, cm.inventory_status as inventoryStatus, cm.stock_remark, cm.merge_flag, cm.signature_file, cm.department_pass, cm.receipt_file, cm.amount_paid, cm.amount_unpaid, cm.contract_name, cm.status as contractStatus, cm.contract_no, cm.contract_amount, paod.product_name, cm.advance_payment, cm.advance_ratio, cm.currency_unit from purchase_apply_order pao left join supplier s on pao.supplier_id = s.id left join ( SELECT GROUP_CONCAT(distinct p.product_name) product_name, sum(IFNULL(amount_tax, 0)) amount, apply_order_no from purchase_apply_order_details pa left join product p on p.pn_code = pa.product_code where p.company_id = 29 GROUP BY apply_order_no ) paod on paod.apply_order_no = pao.order_no left join contract_management cm on pao.contract_id = cm.id where pao.delete = 0 and pao.company_id = 29 and deadline <= '2023-05-25 15:34:00.01' and remind = 0 and arrival_status in( 0 , 1 ) order by pao.create_time desc;

2023-05-25 上传
LEFT JOIN product p ON p.pn_code = pa.product_code WHERE p.company_id = 29 GROUP BY apply_order_no ) paod ON paod.apply_order_no = pao.order_no LEFT JOIN contract_management cm ON pao.contract_...

select a.job_id, a.job_name, a.job_group, a.invoke_target, a.cron_expression, a.misfire_policy, a.concurrent, a.status, a.create_by, a.create_time, a.remark, a.job_des, a.cron_des, b.status as last_execute_status, b.create_time as last_execute_time from sys_job a left join sys_job_log b ON a.job_name = b.job_name and a.job_group = b.job_group where b.create_time = (select max(create_time) from sys_job_log c where a.job_name = c.job_name and a.job_group = c.job_group) or b.create_time is null 此SQl为Oracle运行环境，因为sys_job_log有create_time相同的数据导致了数据重复，如何解决

2023-06-09 上传
where b.create_time = (select max(c.create_time) from sys_job_log c where a.job_name = c.job_name and a.job_group = c.job_group and c.create_time < b.create_time) or b.create_time is null ``` 这样...

import socket users={} host = '172.22.102.20' port = 9999 server_socket = socket.socket(socket.AF_INET,socket.SOCK_STREAM) server_socket.bind((host,port)) server_socket.listen(1) server_socket.listen(1) print('等待连接...') client_socket,client_address=server_socket.accept() print(f'已连接：{client_address}') while True: message=client_socket.recv(1024).decode('utf-8') print(f'客户端：{message}') if not message: break if message.startswith('register'): # 处理注册请求 _, username, password = message.split() # 解析用户名和密码 users[username] = password # 保存用户信息 reply_message = f'注册成功，用户名为{username}' elif message.startswith('login'): # 处理登录请求 _, username, password = message.split() # 解析用户名和密码 if users.get(username) == password: # 验证用户身份 reply_message = f'登录成功，欢迎{username}！' else: reply_message = '用户名或密码错误，请重新输入。' reply_message=f'已收到：{message}' client_socket.sendall(reply_message.encode('utf-8')) client_socket.close() client_socket.close()这是服务器端的代码，import socket host='172.22.102.20' port=9999 client_socket=socket.socket(socket.AF_INET,socket.SOCK_STREAM) client_socket.connect((host,port)) while True: username = input('请输入用户名：') password = input('请输入密码：') message = f'register {username} {password}' client_socket.sendall(message.encode('utf-8')) message=input('请输入要发送的信息：') reply_message=client_socket.recv(1024).decode('utf-8') print(f'服务器：{reply_message}') client_socket.close()这是客户端的代码，在此基础上增加一个gui框架

2023-05-25 上传
super().__init__() self.title('Chat App') self.geometry('400x500') self.create_widgets() def create_widgets(self): self.message_listbox = tk.Listbox(self, height=20) self.message_listbox.pack...

select d.* from ( select d.dept_id, d.parent_id, d.dept_code, d.ancestors, d.dept_name, d.order_num, d.leader, d.phone, d.email, d.status, d.del_flag, d.create_by, d.create_time, d.pinyin_logogram,d.pinyin_whole,d.dept_type,d.dept_code,d.storage_type,d.third_code,d.dept_address from sys_dept d where dept_id = ? ) d left join sys_dept_ext sde on sde.dept_id = d.dept_id ### Cause: com.microsoft.sqlserver.jdbc.SQLServerException: 多次为 'd' 指定了列 'dept_code'。正确语句是什么

2023-05-30 上传
code, d.ancestors, d.dept_name, d.order_num, d.leader, d.phone, d.email, d.status, d.del_flag, d.create_by, d.create_time, d.pinyin_logogram, d.pinyin_whole, d.dept_type, d.storage_type, d.third_code,...

int Create() {//创建一个套接字 //套接字（socket）是一个抽象层，应用程序可以通过它发送或接收数据，可对其进行像对文件一样的打开、读写和关闭等操作 int created = (sock = socket(AF_UNIX, SOCK_STREAM, 0)) != -1;//创建一个socket return created;//返回socket的值。创建成功返回1，失败返回0 } void Close() {//关闭套接字并执行一些清理操作 connected = 0; if (sock > 0) close(sock); } int Connect() {//用于在客户端与服务器建立连接 memset(socket_name, 0, sizeof(socket_name));//初始化socket_name全部元素为0 memcpy(&socket_name[0], "\0", 1);//将字符 "\0" 复制到 socket_name 数组的第一个位置，作为字符串的结束符 strcpy(&socket_name[1], SOCKET_NAME);//将 SOCKET_NAME 字符串拷贝到 socket_name 数组的后续位置，将其作为连接时使用的套接字名称 memset(&addr_server, 0, sizeof(struct sockaddr_un));//将 addr_server 结构体初始化为0 addr_server.sun_family = AF_UNIX; // Unix Domain instead of AF_INET IP domain strncpy(addr_server.sun_path, socket_name, sizeof(addr_server.sun_path) - 1); // 108 char max //使用 strncpy 函数将 socket_name 复制到 addr_server.sun_path 成员变量中 //并限制复制的长度为 sizeof(addr_server.sun_path) - 1，确保不会超过 addr_server.sun_path 的最大长度 if (connect(sock, (struct sockaddr *) &addr_server, sizeof(addr_server)) == -1) { Close(); return 0; }改进代码

2023-07-13 上传
int Create() { sock = socket(AF_UNIX, SOCK_STREAM, 0); if (sock == -1) { return 0; } return 1; } void Close() { connected = 0; if (sock > 0) { close(sock); } } int Connect() { memset...

select mg.id, mg.name, mg.category_id, mg.code, mg.brand_id, mg.stock, mg.is_hot_sell, mg.is_shelves, mg.is_new, mg.is_limit_buy_quantity, mg.is_open_group, mg.group_number, mg.group_lowest_price, mg.state, mg.main_pic, mg.keyword, mg.brief_introduction, mg.supply_channel, mg.supplier_id, mg.video_link, mg.description, mg.create_by, mg.create_time, mg.create_org, mg.update_by, mg.update_time, mg.made_in, mg.model, mg.market_price, mg.is_shipping_cost, mg.shipping_cost, mg.is_tax, mg.billing_type, mg.sell_count, (select name from mall_brand where id = mg.brand_id) brand_name, category_name, (select name from mall_supplier where id = mg.supplier_id) supplier_name, shelves_time, (select retail_price,unit_price from mall_goods_sku where goods_id=mg.id limit 1) retail_price,unit_price from mall_goods mg where mg.state = 1 这个sql语句哪里错了

2023-07-15 上传
mg.supply_channel, mg.supplier_id, mg.video_link, mg.description, mg.create_by, mg.create_time, mg.create_org, mg.update_by, mg.update_time, mg.made_in, mg.model, mg.market_price, mg.is_shipping_...
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