first commit

历届学生/front-end-team-11/项目开发/学生项目/贡婉宝/nodejs博客/backendV1/mysql/index.js

@@ -0,0 +1,37 @@
+var mysql = require('mysql');
+var config =require('../config')
+class Mysql{
+    constructor(){
+        this.connection = mysql.createConnection(config.mysqlConfig);
+        //打开链接
+        this.connection.connect()
+    }
+    query(params){
+        return new Promise((resolve,reject)=>{
+            this.connection.query(params.sql,params.value,(error, results, fields)=>{
+                if(error){
+                    resolve( this.error(error.message,error.code))
+                }else{
+                    resolve(this.success(results))
+                }
+            })
+        })
+        
+    }
+    //成功获取数据时
+    success(data=[],messages="请求成功"){
+        config.ResponseResult.code=200;
+        config.ResponseResult.message=messages;
+        config.ResponseResult.data=data;
+        return config.ResponseResult
+    }
+    //报错时
+    error(messages="请求失败",code="", data=[]){
+        config.ResponseResult.code=code;
+        config.ResponseResult.message=messages;
+        config.ResponseResult.data=data;
+        return config.ResponseResult
+    }
+}
+
+module.exports=new Mysql()