{"id":807,"date":"2023-08-15T23:15:03","date_gmt":"2023-08-15T15:15:03","guid":{"rendered":"http:\/\/gjweb.top\/?p=807"},"modified":"2023-08-15T23:19:16","modified_gmt":"2023-08-15T15:19:16","slug":"node-%e4%b8%ad%e6%93%8d%e4%bd%9c%e6%95%b0%e6%8d%ae%e5%ba%93","status":"publish","type":"post","link":"https:\/\/gjweb.top\/?p=807","title":{"rendered":"node \u4e2d\u64cd\u4f5cMySQL\u6570\u636e\u5e93"},"content":{"rendered":"\n

\u5b89\u88c5<\/h2>\n\n\n\n
yarn add mysql -S<\/code><\/pre>\n\n\n\n
\u4f7f\u7528<\/h2>\n\n\n\n
\u521b\u5efa mysql.js \u6587\u4ef6\u5939<\/p>\n\n\n\n
\/*\u5bfc\u5165\u6a21\u5757*\/
const mysql = require('mysql');
\u200b
\/*\u521b\u5efa\u4e00\u4e2a\u6570\u636e\u5e93\u8fde\u63a5*\/
const db = mysql.createPool({
  host: '', \/* \u5730\u5740*\/
  port: \"3306\", \/* \u7aef\u53e3\u53f7*\/
  user: 'root', \/* \u7528\u6237\u540d*\/
  password: \"Gongjian_93692\", \/* \u5bc6\u7801*\/
  database: 'tencemtim' \/*\u6570\u636e\u5e93\u540d\u79f0*\/
});
\u200b
\/*\u8fde\u63a5\u72b6\u6001\u76d1\u542c\u5668*\/
db.getConnection((err, connection) => {
  if(err) {
    console.log(\"\u8fde\u63a5\u5931\u8d25\")
    console.log(err);
  }else{
    console.log(\"\u8fde\u63a5\u6210\u529f\")
  }
})
\u200b
\/*\u67e5\u8be2\u6570\u636e*\/
\/*SHOW * FROM users;*\/
const queryDB = (sql)=>{
  return new Promise((resolve,reject)=>{
    db.query(
      sql,
      function(err, data) {
        if(err){
          reject({
            code:102,
            error:err
          })
        }else{
          resolve({
            code:101,
            data:data
          })
        }
      }
    );
  })
}
\u200b
\/*\u589e\u52a0\u6570\u636e*\/
\/*INSERT INTO users SET ?*\/
const addDB = (sql,data)=>{
  return new Promise((resolve,reject)=>{
    db.query(sql, data, (err, data) => {
      if (err) {
        reject({
          code:102,
          error:err
        })
      } else {
        resolve({
          code:101,
          data:data
        })
      }
    });
  })
}
\u200b
\/* \u4fee\u6539\u6570\u636e *\/
\/* 'UPDATE users SET ? WHERE id = ?' *\/
const reviseDB = (sql)=>{
  return new Promise((resolve,reject)=>{
    db.query(sql, [data], (error, data) => {
      if(error){
        reject(
          {
            code:102,
            error:error
          }
        )
      }else{
        resolve(
          {
            code:101,
            data:data
          }
        )
      }
    });
  })
}
\u200b
module.exports = {
  queryDB,
  addDB,
  reviseDB
};
\u200b
\u200b<\/code><\/pre>\n\n\n\n
\u4f7f\u7528\u65b9\u5f0f\u76f4\u63a5\u5f15\u5165\u5373\u53ef.<\/p>\n\n\n\n
const { addDB, queryDB } = require('..\/util\/mysql');<\/code><\/pre>\n\n\n\n
\u7591\u95ee: \u4e0a\u9762\u8fd9\u79cd\u76f4\u63a5\u5f15\u5165\u7684\u65b9\u5f0f\uff0c\u4e0d\u4f1a\u8ba9 node \u91cd\u590d\u53bb\u8fde\u63a5\u6570\u636e\u5e93\u3002<\/p>\n\n\n\n
\n\n\n\n
\u65b9\u6cd5\u8c03\u7528\u793a\u4f8b<\/p>\n\n\n\n
\/*\u67e5\u8be2\uff1a*\/
db.query('select * from users');
\u200b
\/* \u63d2\u5165\uff1a*\/
db.query('INSERT INTO `users`(`id`,`name`,`age`, `password`) VALUES (?,?,?,?)',[null,\"kerwin\",100,\"123456\"]);
\u200b
\/* \u66f4\u65b0\uff1a*\/
db.query(`UPDATE users SET name = ? ,age=? WHERE id = ?`,[\"xiaoming2\",20,1])
\u200b
\/* \u5220\u9664\uff1a*\/
db.query(`DELETE FROM users WHERE id=?`,[1])<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
\u5b89\u88c5 \u4f7f\u7528 \u521b\u5efa mysql.js \u6587\u4ef6\u5939 \u4f7f\u7528\u65b9\u5f0f\u76f4\u63a5\u5f15\u5165\u5373\u53ef. \u7591\u95ee: \u4e0a\u9762\u8fd9\u79cd\u76f4\u63a5\u5f15\u5165\u7684\u65b9\u5f0f\uff0c\u4e0d\u4f1a\u8ba9 n […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[66],"tags":[],"class_list":["post-807","post","type-post","status-publish","format-standard","hentry","category-mysql"],"_links":{"self":[{"href":"https:\/\/gjweb.top\/index.php?rest_route=\/wp\/v2\/posts\/807","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gjweb.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gjweb.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gjweb.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gjweb.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=807"}],"version-history":[{"count":2,"href":"https:\/\/gjweb.top\/index.php?rest_route=\/wp\/v2\/posts\/807\/revisions"}],"predecessor-version":[{"id":813,"href":"https:\/\/gjweb.top\/index.php?rest_route=\/wp\/v2\/posts\/807\/revisions\/813"}],"wp:attachment":[{"href":"https:\/\/gjweb.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=807"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gjweb.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=807"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gjweb.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=807"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}