diff --git a/.gitignore b/.gitignore index 3463a42..e3d5f20 100644 --- a/.gitignore +++ b/.gitignore @@ -24,10 +24,11 @@ server_demo/.idea/* /server_demo/node_modules/* server_demo/node_modules/* +/sse_demo/node_modules/* +sse_demo/node_modules/* + -/server_demo/.idea -server_demo/.idea # Diagnostic reports (https://nodejs.org/api/report.html) report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json diff --git a/server_demo/apiRouter.js b/server_demo/apiRouter.js index dc19188..d4342db 100644 --- a/server_demo/apiRouter.js +++ b/server_demo/apiRouter.js @@ -6,7 +6,15 @@ const router = express.Router() const oracledb = require('oracledb'); -const connectionString = "system/452131wW@192.168.3.29:1521/orcl"; // 替换为实际的用户名、密码、主机名、端口号和数据库名 +const mysql = require('mysql2'); + +const pool = mysql.createPool({ + host: 'localhost', + user: 'root', + password: 'Skyinno251,', + database: 'appserver', + connectionLimit: 10 // 连接池最大连接数 +}); // 设置数据库连接参数 const config = { @@ -79,4 +87,32 @@ router.delete('/delete', (req, res) => { }) }) +// 在这里挂载对应的路由 +router.get('/getUser', (req, res) => { + pool.query('SELECT * FROM user', (err, rows) => { + if (err) { + console.error('Error querying database:', err); + res.status(500).send('Internal Server Error'); + } else { + console.log(rows) + res.send({ + status: 1, + msg: 'POST请求成功', + data: rows + }) + //res.json(rows); + } + }); + pool.getConnection((err, connection) => { + if (err) throw err; + connection.query('SELECT * FROM time_now', (error, results, fields) => { + connection.release(); // 释放连接 + if (error) throw error; + console.log(results); + }); + }); +}) + + + module.exports = router diff --git a/server_demo/mysql.js b/server_demo/mysql.js new file mode 100644 index 0000000..20ea242 --- /dev/null +++ b/server_demo/mysql.js @@ -0,0 +1,32 @@ + +const mysql = require('mysql2'); +const connection = mysql.createConnection({ + host : 'localhost', + user : 'root', + password : 'Skyinno251,', + database : 'appserver' +}); + +connection.connect((err) => { + if (err) { + console.error('连接失败: ' + err.stack); + return; + } + console.log('连接成功，线程ID: ' + connection.threadId); + // + var sql = 'SELECT * FROM temperature where id < 50'; + //查 + connection.query(sql,function (err, result) { + if(err){ + console.log('[SELECT ERROR] - ',err.message); + connection.end(); + return; + } + + console.log('--------------------------SELECT----------------------------'); + console.log(result); + console.log('------------------------------------------------------------\n\n'); + connection.end(); + }); +}); + diff --git a/server_demo/mysql2.js b/server_demo/mysql2.js new file mode 100644 index 0000000..b041936 --- /dev/null +++ b/server_demo/mysql2.js @@ -0,0 +1,19 @@ + +const mysql = require('mysql2'); + +const pool = mysql.createPool({ + host: 'localhost', + user: 'root', + password: 'Skyinno251,', + database: 'appserver', + connectionLimit: 10 // 连接池最大连接数 +}); + +pool.query('SELECT * FROM user', (err, rows) => { + if (err) { + console.error('Error querying database:', err); + //res.status(500).send('Internal Server Error'); + } else { + //res.json(rows); + } +}); \ No newline at end of file diff --git a/server_demo/oracle.js b/server_demo/oracle.js index e69de29..1dee8fa 100644 --- a/server_demo/oracle.js +++ b/server_demo/oracle.js @@ -0,0 +1,35 @@ + +const oracledb = require('oracledb'); + +// 设置数据库连接参数 +const config = { + user: 'system', + password: '452131wW', + connectString : "192.168.3.29:1521/orcl" // 或者直接使用 'hostname:port/sid' +}; + +async function run() { + let connection; + + try { + // 获取数据库连接 + connection = await oracledb.getConnection(config); + console.log('Connection established.'); + + // 执行查询 + const result = await connection.execute('SELECT * FROM TYPE'); + console.log(result.rows); // 输出查询结果 + } catch (err) { + console.error(err); + } finally { + if (connection) { + // 关闭数据库连接 + try { + await connection.close(); + console.log('Connection closed.'); + } catch (err) { + console.error(err); + } + } + } +} \ No newline at end of file diff --git a/server_demo/package-lock.json b/server_demo/package-lock.json index 3298116..78fc45c 100644 --- a/server_demo/package-lock.json +++ b/server_demo/package-lock.json @@ -11,6 +11,7 @@ "dependencies": { "cors": "^2.8.5", "express": "^5.1.0", + "mysql2": "^3.14.1", "nodemon": "^3.1.10", "oracledb": "^5.5.0" } @@ -41,6 +42,15 @@ "node": ">= 8" } }, + "node_modules/aws-ssl-profiles": { + "version": "1.1.2", + "resolved": "https://registry.npmjs.org/aws-ssl-profiles/-/aws-ssl-profiles-1.1.2.tgz", + "integrity": "sha512-NZKeq9AfyQvEeNlN0zSYAaWrmBffJh3IELMZfRpJVWgrpEbtEpnjvzqBPf+mxoI287JohRDoa+/nsfqqiZmF6g==", + "license": "MIT", + "engines": { + "node": ">= 6.0.0" + } + }, "node_modules/balanced-match": { "version": "1.0.2", "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz", @@ -238,6 +248,15 @@ } } }, + "node_modules/denque": { + "version": "2.1.0", + "resolved": "https://registry.npmjs.org/denque/-/denque-2.1.0.tgz", + "integrity": "sha512-HVQE3AAb/pxF8fQAoiqpvg9i3evqug3hoiwakOyZAwJm+6vZehbkYXZ0l4JxS+I3QxM97v5aaRNhj8v5oBhekw==", + "license": "Apache-2.0", + "engines": { + "node": ">=0.10" + } + }, "node_modules/depd": { "version": "2.0.0", "resolved": "https://registry.npmjs.org/depd/-/depd-2.0.0.tgz", @@ -433,6 +452,15 @@ "url": "https://github.com/sponsors/ljharb" } }, + "node_modules/generate-function": { + "version": "2.3.1", + "resolved": "https://registry.npmjs.org/generate-function/-/generate-function-2.3.1.tgz", + "integrity": "sha512-eeB5GfMNeevm/GRYq20ShmsaGcmI81kIX2K9XQx5miC8KdHaC6Jm0qQ8ZNeGOi7wYB8OsdxKs+Y2oVuTFuVwKQ==", + "license": "MIT", + "dependencies": { + "is-property": "^1.0.2" + } + }, "node_modules/get-intrinsic": { "version": "1.3.0", "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.3.0.tgz", @@ -624,6 +652,42 @@ "integrity": "sha512-hvpoI6korhJMnej285dSg6nu1+e6uxs7zG3BYAm5byqDsgJNWwxzM6z6iZiAgQR4TJ30JmBTOwqZUw3WlyH3AQ==", "license": "MIT" }, + "node_modules/is-property": { + "version": "1.0.2", + "resolved": "https://registry.npmjs.org/is-property/-/is-property-1.0.2.tgz", + "integrity": "sha512-Ks/IoX00TtClbGQr4TWXemAnktAQvYB7HzcCxDGqEZU6oCmb2INHuOoKxbtR+HFkmYWBKv/dOZtGRiAjDhj92g==", + "license": "MIT" + }, + "node_modules/long": { + "version": "5.3.2", + "resolved": "https://registry.npmjs.org/long/-/long-5.3.2.tgz", + "integrity": "sha512-mNAgZ1GmyNhD7AuqnTG3/VQ26o760+ZYBPKjPvugO8+nLbYfX6TVpJPseBvopbdY+qpZ/lKUnmEc1LeZYS3QAA==", + "license": "Apache-2.0" + }, + "node_modules/lru-cache": { + "version": "7.18.3", + "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-7.18.3.tgz", + "integrity": "sha512-jumlc0BIUrS3qJGgIkWZsyfAM7NCWiBcCDhnd+3NNM5KbBmLTgHVfWBcg6W+rLUsIpzpERPsvwUP7CckAQSOoA==", + "license": "ISC", + "engines": { + "node": ">=12" + } + }, + "node_modules/lru.min": { + "version": "1.1.2", + "resolved": "https://registry.npmjs.org/lru.min/-/lru.min-1.1.2.tgz", + "integrity": "sha512-Nv9KddBcQSlQopmBHXSsZVY5xsdlZkdH/Iey0BlcBYggMd4two7cZnKOK9vmy3nY0O5RGH99z1PCeTpPqszUYg==", + "license": "MIT", + "engines": { + "bun": ">=1.0.0", + "deno": ">=1.30.0", + "node": ">=8.0.0" + }, + "funding": { + "type": "github", + "url": "https://github.com/sponsors/wellwelwel" + } + }, "node_modules/math-intrinsics": { "version": "1.1.0", "resolved": "https://registry.npmjs.org/math-intrinsics/-/math-intrinsics-1.1.0.tgz", @@ -693,6 +757,38 @@ "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==", "license": "MIT" }, + "node_modules/mysql2": { + "version": "3.14.1", + "resolved": "https://registry.npmjs.org/mysql2/-/mysql2-3.14.1.tgz", + "integrity": "sha512-7ytuPQJjQB8TNAYX/H2yhL+iQOnIBjAMam361R7UAL0lOVXWjtdrmoL9HYKqKoLp/8UUTRcvo1QPvK9KL7wA8w==", + "license": "MIT", + "dependencies": { + "aws-ssl-profiles": "^1.1.1", + "denque": "^2.1.0", + "generate-function": "^2.3.1", + "iconv-lite": "^0.6.3", + "long": "^5.2.1", + "lru.min": "^1.0.0", + "named-placeholders": "^1.1.3", + "seq-queue": "^0.0.5", + "sqlstring": "^2.3.2" + }, + "engines": { + "node": ">= 8.0" + } + }, + "node_modules/named-placeholders": { + "version": "1.1.3", + "resolved": "https://registry.npmjs.org/named-placeholders/-/named-placeholders-1.1.3.tgz", + "integrity": "sha512-eLoBxg6wE/rZkJPhU/xRX1WTpkFEwDJEN96oxFrTsqBdbT5ec295Q+CoHrL9IT0DipqKhmGcaZmwOt8OON5x1w==", + "license": "MIT", + "dependencies": { + "lru-cache": "^7.14.1" + }, + "engines": { + "node": ">=12.0.0" + } + }, "node_modules/negotiator": { "version": "1.0.0", "resolved": "https://registry.npmjs.org/negotiator/-/negotiator-1.0.0.tgz", @@ -967,6 +1063,11 @@ "node": ">= 18" } }, + "node_modules/seq-queue": { + "version": "0.0.5", + "resolved": "https://registry.npmjs.org/seq-queue/-/seq-queue-0.0.5.tgz", + "integrity": "sha512-hr3Wtp/GZIc/6DAGPDcV4/9WoZhjrkXsi5B/07QgX8tsdc6ilr7BFM6PM6rbdAX1kFSDYeZGLipIZZKyQP0O5Q==" + }, "node_modules/serve-static": { "version": "2.2.0", "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-2.2.0.tgz", @@ -1072,6 +1173,15 @@ "node": ">=10" } }, + "node_modules/sqlstring": { + "version": "2.3.3", + "resolved": "https://registry.npmjs.org/sqlstring/-/sqlstring-2.3.3.tgz", + "integrity": "sha512-qC9iz2FlN7DQl3+wjwn3802RTyjCx7sDvfQEXchwa6CWOx07/WVfh91gBmQ9fahw8snwGEWU3xGzOt4tFyHLxg==", + "license": "MIT", + "engines": { + "node": ">= 0.6" + } + }, "node_modules/statuses": { "version": "2.0.1", "resolved": "https://registry.npmjs.org/statuses/-/statuses-2.0.1.tgz", diff --git a/server_demo/package.json b/server_demo/package.json index 6331b74..a770d31 100644 --- a/server_demo/package.json +++ b/server_demo/package.json @@ -2,11 +2,10 @@ "name": "server_demo", "version": "1.0.0", "description": "", - "main": "index.js", + "main": "server.js", "scripts": { "test": "echo \"Error: no test specified\" && exit 1", - "start": "nodemon server.js", - "start1": "nodemon --ext js,html,css server.js" + "start": "nodemon --ext js,html,css server.js" }, "keywords": [], "author": "", @@ -14,6 +13,7 @@ "dependencies": { "cors": "^2.8.5", "express": "^5.1.0", + "mysql2": "^3.14.1", "nodemon": "^3.1.10", "oracledb": "^5.5.0" } diff --git a/sse_demo/apiRouter.js b/sse_demo/apiRouter.js new file mode 100644 index 0000000..47b6bc9 --- /dev/null +++ b/sse_demo/apiRouter.js @@ -0,0 +1,260 @@ +//16.apiRouter.js +const express = require('express') +const bodyParser = require('body-parser'); + +const router = express.Router() +const fs = require("fs"); + +const mysql = require('mysql2'); +const moment = require("moment"); + +const util = require('util'); + + +const pool = mysql.createPool({ + host: 'localhost', + user: 'root', + password: 'Skyinno251,', + database: 'appserver', + multipleStatements: true, // 允许执行多条语句,（高并发方式） + connectionLimit: 10 // 连接池最大连接数 +}); + + +// 在这里挂载对应的路由 +router.get('/get', (req, res) => { + // 通过 req.query 获取客户端发送到服务器的数据(查询字符串) + const query = req.query + + run().then(r => {console.log("调用oracle")}) + + + + // 调用 res.send() 方法，向客户端响应处理的结果 + res.send({ + status: 0,// 0 表示处理成功，1 表示处理失败 + msg: 'GRT请求成功', // 状态的描述 + data: query// 需要响应给客户端的数据 + }) +}) + + +router.post('/addTimeNow', (req, res) => { + // 通过 req.body 获取请求体中包含的 url-encoded 格式的数据 + const body = req.body + res.send({ + status: 1, + msg: 'POST请求成功', + data: body + }) +}) + + +// 新增用户 POST 请求处理程序 +router.post('/addUserNow', (req, res) => { + const date = new Date(); + const formattedDate = moment(date).format('YYYY-MM-DD HH:mm:ss'); + console.log(formattedDate); + + const { name, age } = req.body; // 从请求体中获取数据 + + if (name == undefined||name == ''||name == null) { + res.status(500).json({ error: 'name not null' }); + return + } + if (age == undefined||age == ''||age == null) { + res.status(500).json({ error: 'age not null' }); + return + } + + + const values = [name, age, date]; + const insertSql = `INSERT INTO user_now (name, age,create_time) VALUES (?, ?, ?)`; + pool.query(insertSql, values, (err, results) => { + if (err) { + console.error('Error querying database:', err); + res.status(500).json({ error: 'Internal server error' }); + return; + } + res.json({ + code:'200', + data:results, + }); + }); +}); + +router.delete('/delete', (req, res) => { + res.send({ + status: 0, + msg: 'DELETE请求成功', + }) +}) + +// 获取用户详情 3 +router.get('/user/:username', (req, res) => { + const { username } = req.params; + if (username == undefined||username == ''||username == null) { + res.status(500).json({ error: 'username not null' }); + return + } + const values =[username]; + let query = 'SELECT * FROM user WHERE username = ?'; + pool.query(query,values,(err, results) => { + if (err) { + console.error('Error querying database:', err); + res.status(500).json({ error: 'Internal server error' }); + return; + } + res.json({ + code:'200', + data:results?results[0]:{}, + }); + }); +}); + +router.get('/user', (req, res) => { + const { username, name } = req.query; + //const values =[username, name]; + let query = 'SELECT * FROM user'; + // 构建查询条件 + const params = []; + if (name !== undefined&&name !== ''&&name !== null) { + query += ' WHERE name = ?'; + params.push(name); + } + if (username !== undefined&&username !== ''&&username !== null) { + query += params.length ? ' AND' : ' WHERE'; + query += ' username = ?'; + params.push(username); + } + + // 查询数据库并返回数据 + pool.query(query,params,(err, results) => { + + if (err) { + console.error('Error querying database:', err); + res.status(500).json({ error: 'Internal server error' }); + return; + } + res.json({ + code:'200', + data:results, + }); + }); +}); + +router.put('/userPut', (req, res) => { + // console.log(req.body); + const { name, age ,id} = req.body; // 从请求体中获取数据 + + if (id == undefined||id == ''||id == null) { + res.status(500).json({ error: 'id not null' }); + return + } + if (name == undefined||name == ''||name == null) { + res.status(500).json({ error: 'name not null' }); + return + } + if (age == undefined||age == ''||age == null) { + res.status(500).json({ error: 'age not null' }); + return + } + + const values = [name, age, id]; + // 准备 SQL 插入语句 + const sql = "UPDATE user_now SET name = ?, age = ? WHERE id = ?"; + pool.query(sql, values, (err, results) => { + // console.log(err,'err'); + // console.log(results,'results'); + if (err) { + console.error('Error querying database:', err); + res.status(500).json({ error: 'Internal server error' }); + return; + } + res.json({ + code:'200', + data:results, + }); + }); +}); + +// 删除用户数据 DELETE请求处理程序 +router.delete('/userDel/:id', (req, res) => { + // const {id} = req.body; // 从请求体中获取数据 + const id = req.params.id; + + if (id == undefined||id == ''||id == null) { + res.status(500).json({ error: 'id not null' }); + return + } + + // console.log(id,'id'); + const values = [id]; + const sql = "DELETE FROM time_now WHERE id = ?"; + pool.query(sql, values, (err, results) => { + // console.log(err,'err'); + // console.log(results,'results'); + if (err) { + console.error('Error querying database:', err); + res.status(500).json({ error: 'Internal server error' }); + return; + } + res.json({ + code:'200', + data:results, + }); + }); +}); + +router.get('/process_get', function (req, res) { + + // 输出 JSON 格式 + var response = { + "first_name":req.query.first_name, + "last_name":req.query.last_name + }; + console.log(response); + res.end(JSON.stringify(response)); +}) + +// 创建 application/x-www-form-urlencoded 编码解析 +const urlencodedParser = bodyParser.urlencoded({ extended: false }) + +router.post('/process_post', urlencodedParser, function (req, res) { + + // 输出 JSON 格式 + var response = { + "first_name":req.body.first_name, + "last_name":req.body.last_name + }; + console.log(response); + res.end(JSON.stringify(response)); +}) + +router.post('/file_upload', function (req, res) { + + console.log(req.files[0]); // 上传的文件信息 + + const des_file = "/Users/admin/tmp/" + req.files[0].originalname; + fs.readFile( req.files[0].path, function (err, data) { + fs.writeFile(des_file, data, function (err) { + if( err ){ + console.log( err ); + }else{ + response = { + message:'File uploaded successfully', + filename:req.files[0].originalname + }; + } + console.log( response ); + res.end( JSON.stringify( response ) ); + }); + }); +}) + +router.get('/getCookies', function(req, res) { + console.log("Cookies: " + util.inspect(req.cookies)); + res.end( JSON.stringify( util.inspect(req.cookies) ) ); +}) + +module.exports = router diff --git a/sse_demo/index.js b/sse_demo/index.js new file mode 100644 index 0000000..e51670c --- /dev/null +++ b/sse_demo/index.js @@ -0,0 +1,55 @@ +// app.js +const express=require("express"); +const path=require("path") +// 处理跨域的插件 +const cors = require('cors') +// SSE相关信息路由 +const sseInfoRouter = require('./routes/sse/infoPush'); + +const cookieParser = require('cookie-parser') + + + +const app= express(); + +const bodyParser = require('body-parser'); +const multer = require('multer'); + +app.use(bodyParser.urlencoded({ extended: false })); +app.use(multer({ dest: '/tmp/'}).array('image')); + +app.use(cookieParser()) + + + + + +// 使用跨域插件 +app.use(cors()) + +// app.use('/public', express.static('public')) +app.use(express.static('public')) +app.use(express.static('/tmp/')) + +// app.use('/public', express.static('public')); + +app.get('/get.html', function (req, res) { + res.sendFile( __dirname + "/" + "get.html" ); +}) + +console.log(__dirname) + +app.use('/sse', sseInfoRouter); + +// 配置解析表单数据的中间件 +app.use(express.urlencoded({ extended: false })) + +// 导入路由模块 +const apiRouter = require('./apiRouter.js') +// 把路由模块，注册到 app 上 +app.use('/api', apiRouter) + +//端口 +app.listen(3000,function () { + console.log("127.0.0.1:3000") +}); diff --git a/sse_demo/mysql.js b/sse_demo/mysql.js new file mode 100644 index 0000000..20ea242 --- /dev/null +++ b/sse_demo/mysql.js @@ -0,0 +1,32 @@ + +const mysql = require('mysql2'); +const connection = mysql.createConnection({ + host : 'localhost', + user : 'root', + password : 'Skyinno251,', + database : 'appserver' +}); + +connection.connect((err) => { + if (err) { + console.error('连接失败: ' + err.stack); + return; + } + console.log('连接成功，线程ID: ' + connection.threadId); + // + var sql = 'SELECT * FROM temperature where id < 50'; + //查 + connection.query(sql,function (err, result) { + if(err){ + console.log('[SELECT ERROR] - ',err.message); + connection.end(); + return; + } + + console.log('--------------------------SELECT----------------------------'); + console.log(result); + console.log('------------------------------------------------------------\n\n'); + connection.end(); + }); +}); + diff --git a/sse_demo/mysql2.js b/sse_demo/mysql2.js new file mode 100644 index 0000000..866208c --- /dev/null +++ b/sse_demo/mysql2.js @@ -0,0 +1,18 @@ + +const mysql = require('mysql2'); +const pool = mysql.createPool({ + host: 'localhost', + user: 'root', + password: 'Skyinno251,', + database: 'appserver', + connectionLimit: 10 // 连接池最大连接数 +}); + +pool.query('SELECT * FROM user', (err, rows) => { + if (err) { + console.error('Error querying database:', err); + //res.status(500).send('Internal Server Error'); + } else { + //res.json(rows); + } +}); \ No newline at end of file diff --git a/sse_demo/package-lock.json b/sse_demo/package-lock.json new file mode 100644 index 0000000..73dea14 --- /dev/null +++ b/sse_demo/package-lock.json @@ -0,0 +1,1505 @@ +{ + "name": "sse_demo", + "version": "1.0.0", + "lockfileVersion": 3, + "requires": true, + "packages": { + "": { + "name": "sse_demo", + "version": "1.0.0", + "license": "ISC", + "dependencies": { + "body-parser": "^2.2.0", + "cookie-parser": "^1.4.7", + "cors": "^2.8.5", + "express": "^5.1.0", + "moment": "^2.30.1", + "multer": "^1.4.5-lts.2", + "mysql2": "^3.14.1", + "nodemon": "^3.1.10" + } + }, + "node_modules/accepts": { + "version": "2.0.0", + "resolved": "https://registry.npmjs.org/accepts/-/accepts-2.0.0.tgz", + "integrity": "sha512-5cvg6CtKwfgdmVqY1WIiXKc3Q1bkRqGLi+2W/6ao+6Y7gu/RCwRuAhGEzh5B4KlszSuTLgZYuqFqo5bImjNKng==", + "license": "MIT", + "dependencies": { + "mime-types": "^3.0.0", + "negotiator": "^1.0.0" + }, + "engines": { + 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"echo \"Error: no test specified\" && exit 1", + "start": "nodemon --ext js,html,css index.js", + "startServer": "nodemon server.js" + }, + "keywords": [ + "sse" + ], + "author": "wenfei", + "license": "ISC", + "dependencies": { + "body-parser": "^2.2.0", + "cookie-parser": "^1.4.7", + "cors": "^2.8.5", + "express": "^5.1.0", + "moment": "^2.30.1", + "multer": "^1.4.5-lts.2", + "mysql2": "^3.14.1", + "nodemon": "^3.1.10" + } +} diff --git a/sse_demo/public/file_upload.html b/sse_demo/public/file_upload.html new file mode 100644 index 0000000..4d7c0dc --- /dev/null +++ b/sse_demo/public/file_upload.html @@ -0,0 +1,14 @@ + + + 文件上传表单 + + +

文件上传：

+选择一个文件上传:
+
+ +
+ +
+ + \ No newline at end of file diff --git a/sse_demo/public/get.html b/sse_demo/public/get.html new file mode 100644 index 0000000..a06bae5 --- /dev/null +++ b/sse_demo/public/get.html @@ -0,0 +1,10 @@ + + +
+ First Name:
+ + Last Name: + +
+ + \ No newline at end of file diff --git a/sse_demo/public/index.html b/sse_demo/public/index.html new file mode 100644 index 0000000..ef67636 --- /dev/null +++ b/sse_demo/public/index.html @@ -0,0 +1,77 @@ + + + + + + + Document + + + + + \ No newline at end of file diff --git a/sse_demo/public/index1.html b/sse_demo/public/index1.html new file mode 100644 index 0000000..1dae44b --- /dev/null +++ b/sse_demo/public/index1.html @@ -0,0 +1,100 @@ + + + + + Title + + + + + + + \ No newline at end of file diff --git a/sse_demo/public/post.html b/sse_demo/public/post.html new file mode 100644 index 0000000..340ec0e --- /dev/null +++ b/sse_demo/public/post.html @@ -0,0 +1,10 @@ + + +
+ First Name:
+ + Last Name:
+ +
+ + \ No newline at end of file diff --git a/sse_demo/public/server.html b/sse_demo/public/server.html new file mode 100644 index 0000000..c1d222a --- /dev/null +++ b/sse_demo/public/server.html @@ -0,0 +1,45 @@ + + + + + + + SSE测试 + + + + + \ No newline at end of file diff --git a/sse_demo/routes/sse/infoPush.js b/sse_demo/routes/sse/infoPush.js new file mode 100644 index 0000000..2730bff --- /dev/null +++ b/sse_demo/routes/sse/infoPush.js @@ -0,0 +1,91 @@ +// routes/sse/infoPush.js 文件 +const express = require("express"); +const moment = require("moment"); + +const mysql = require('mysql2'); +const pool = mysql.createPool({ + host: 'localhost', + user: 'root', + password: 'Skyinno251,', + database: 'appserver', + connectionLimit: 10 // 连接池最大连接数 +}); + +// const {oracleRun} = require("../../oracle"); + +const router = express.Router(); +router.get("/ai/question/push", (req, res) => { + // 设置 SSE 响应类型(告诉客户端响应类型，这是一个SSE事件流) + res.setHeader("Content-Type", "text/event-stream;charset=utf-8"); + /** + * 告诉浏览器不要直接使用缓存中的资源，而是应该向服务器发送请求来检查该资源是否有更新。 + * 确保用户获取到最新内容是非常有用，尤其是在内容频繁更新的Web应用中。 + * */ + res.setHeader("Cache-Control", "no-cache"); + // 用于控制网络连接的持久性。 + res.setHeader("Connection", "keep-alive"); + // 告诉浏览器，来自任何源的请求都可以被接受并访问该资源。可以跨域 + res.setHeader("Access-Control-Allow-Origin", "*"); + console.log("进入到长连接了") + let index = 0; + const timer = setInterval(() => { + + const date = new Date(); + const formattedDate = moment(date).format('YYYY-MM-DD HH:mm:ss'); + console.log(formattedDate); + + console.log("正在持续返回数据中ing") + // const data = { message: `Current time is ${new Date().toLocaleTimeString()}`}; + const data = { message: `Current time is ${formattedDate}`}; + res.write(`data: ${JSON.stringify(data)}\n\n`); + + //res.write("data: " + JSON.stringify({ message: new Date().toLocaleTimeString()}) + "\n\n"); + index++; + console.log(index) + + const values = [date, formattedDate]; + const insertSql = `INSERT INTO time_now (time, date_time) VALUES (?, ?)`; + pool.query(insertSql, values, (err, results) => { + if (err) { + console.error('Error internal database:', err); + res.status(500).json({ error: 'Internal server error' }); + return; + } + console.log(results) + // res.json({ + // code:'200', + // data:results, + // }); + }); + + + }, 5000); + + // 当客户端点击关闭时,我们清除定时器，并且结束推送 + req.on("close", () => { + clearInterval(timer); + res.end(); + }); +}); + + +// // 新增用户 POST 请求处理程序 +// app.post('/api/user', (req, res) => { +// const { name, age } = req.body; // 从请求体中获取数据 +// const values = [name, age]; +// const insertSql = `INSERT INTO user (name, age) VALUES (?, ?)`; +// connectionpool.query(insertSql, values, (err, results) => { +// if (err) { +// console.error('Error querying database:', err); +// res.status(500).json({ error: 'Internal server error' }); +// return; +// } +// res.json({ +// code:'200', +// data:results, +// }); +// }); +// }); + + +module.exports = router; diff --git a/sse_demo/server.js b/sse_demo/server.js new file mode 100644 index 0000000..4d43eb2 --- /dev/null +++ b/sse_demo/server.js @@ -0,0 +1,40 @@ + +const express = require('express'); //引用框架 +const moment = require("moment"); +const app = express(); //创建服务 +const port = 8088; //项目启动端口 + + +// 处理跨域的插件 +const cors = require('cors') +const moment = require("moment"); +// 使用跨域插件 +app.use(cors()) + +app.use(express.static('public')) + + + +app.get("/sse",(req,res) => { + res.set({ + 'Content-Type': 'text/event-stream;charset=utf-8', //设定数据类型,设置 SSE 响应类型(告诉客户端响应类型，这是一个SSE事件流) + 'Cache-Control': 'no-cache',// 长链接拒绝缓存,告诉浏览器不要直接使用缓存中的资源，而是应该向服务器发送请求来检查该资源是否有更新。 + 'Access-Control-Allow-Origin': '*',// 告诉浏览器，来自任何源的请求都可以被接受并访问该资源。可以跨域 + 'Connection': 'keep-alive'//设置长链接,用于控制网络连接的持久性。 + }); + console.log("进入到长连接了") + //持续返回数据 + setInterval(() => { + console.log("正在持续返回数据中ing") + const date = new Date(); + const formattedDate = moment(date).format('YYYY-MM-DD HH:mm:ss'); + console.log(formattedDate); + //const data = { message: `Current time is ${new Date().toLocaleTimeString()}`}; + const data = { message: `Current time is ${formattedDate}`}; + res.write(`data: ${JSON.stringify(data)}\n\n`); + }, 1000); +}) + //创建项目 +app.listen(port, () => { + console.log(`项目启动成功-http://localhost:${port}`) +}) \ No newline at end of file diff --git a/sse_html/index.html b/sse_html/index.html new file mode 100644 index 0000000..bca51aa --- /dev/null +++ b/sse_html/index.html @@ -0,0 +1,45 @@ + + + + + + + Document + + + + + \ No newline at end of file