diff --git a/config/config.js b/config/config.js
new file mode 100644
index 0000000..ddcf23d
--- /dev/null
+++ b/config/config.js
@@ -0,0 +1,27 @@
+const mysqlConfig = {
+    host: '47.100.166.125',
+    user: 'root',
+    database: 'sun',
+    password: '111!aaaA',
+    charset: 'utf8', //应该设置编码（省略在某些情况下会有错误）
+    //以下选项均为默认值（如果不需要变动可省略）
+    connectTimeout: 10000, //获取连接的毫秒
+    waitForConnections: true, //为true时，连接排队等待可用连接。为false将立即抛出错误
+    connectionLimit: 20, //单次可创建最大连接数
+    queueLimit: 0 //连接池的最大请求数，从getConnection方法前依次排队。设置为0将没有限制
+}
+
+const fetchConfig = {
+    baseUrl: 'https://www.esrl.noaa.gov/gmd/grad/solcalc/table.php',
+    sleepTime: 2000, //两次相隔请求之间的间隔，避免爬取服务器奔溃
+}
+
+const logConfig = {
+    level: 'info'
+}
+
+module.exports = {
+    mysqlConfig: mysqlConfig,
+    fetchConfig: fetchConfig,
+    logConfig: logConfig
+}
diff --git a/readme.md b/readme.md
index 4876588..e1cbfb2 100644
--- a/readme.md
+++ b/readme.md
@@ -1,11 +1,49 @@
 ## 爬取日升日落数据
 
+## 环境
+
+- node v8.4.0以上
+
+## 数据源
+
+- ### 城市数据源
+[](./sql/sun_city.sql)
+
+- ### 爬取日升日落数据源
+
+```
+https://www.esrl.noaa.gov/gmd/grad/solcalc/table.php
+```
+
+### sun 表
+
+time        日期
+code        区县编码
+sunrise     日升时间
+solar_moon  正午时间
+sunset      日落时间
+
+### city 表
+
+区县编码经纬度表
+
+## 配置
+
+[./config/config.js](./config/config.js)
+
+配置mysql库连接地址
+
 ## 运行
 
+### 安装依赖
+
 ```
 npm i
 ```
 
+### 运行项目
+
 ```
 npm run start
 ```
+
diff --git a/src/fetch.js b/src/fetch.js
index db7b030..1611a3c 100644
--- a/src/fetch.js
+++ b/src/fetch.js
@@ -3,7 +3,8 @@ const cheerio = require('cheerio')
 const {pool} = require('./mysql')
 const logger = require('./log')
 
-const baseUrl = "https://www.esrl.noaa.gov/gmd/grad/solcalc/table.php";
+const {fetchConfig} = require('../config/config')
+
 
 const parseData = ($, sunrise, year) => {
     const trs = $(sunrise).find('tr')
@@ -36,7 +37,7 @@ const saveData = async (code, year, sunData) => {
 }
 
 const fetchData = async (year, code, latitude, longitude) => {
-    const url = baseUrl +
+    const url = fetchConfig.baseUrl +
         '?lat=' + latitude +
         '&lon=' + longitude +
         '&year=' + year
diff --git a/src/log.js b/src/log.js
index 21a9111..4dae99c 100644
--- a/src/log.js
+++ b/src/log.js
@@ -1,5 +1,6 @@
 const path = require('path');
 const log4js = require('log4js');
+const {logConfig} = require('../config/config');
 
 const config = {
     /**
@@ -9,7 +10,7 @@ const config = {
     /**
      * 日志级别
      */
-    level: 'info',
+    level: logConfig.level,
     /**
      * 默认日志路径
      */
diff --git a/src/mysql.js b/src/mysql.js
index 36e53a0..373e2c8 100644
--- a/src/mysql.js
+++ b/src/mysql.js
@@ -1,18 +1,9 @@
 const mysql = require('mysql2/promise');
 const logger = require('./log')
+const {mysqlConfig} = require('../config/config')
+
 // create the connection to database
-const pool = mysql.createPool({
-    host: '47.100.166.125',
-    user: 'root',
-    database: 'sun',
-    password: '111!aaaA',
-    charset: 'utf8', //应该设置编码（省略在某些情况下会有错误）
-    //以下选项均为默认值（如果不需要变动可省略）
-    connectTimeout: 10000, //获取连接的毫秒
-    waitForConnections: true, //为true时，连接排队等待可用连接。为false将立即抛出错误
-    connectionLimit: 20, //单次可创建最大连接数
-    queueLimit: 0 //连接池的最大请求数，从getConnection方法前依次排队。设置为0将没有限制
-});
+const pool = mysql.createPool(mysqlConfig);
 
 const queryOne = async (sql, prepare) => {
     const [rows] = await pool.query(sql, prepare);
diff --git a/src/process.js b/src/process.js
index a9fabdd..fe7713d 100644
--- a/src/process.js
+++ b/src/process.js
@@ -2,6 +2,7 @@ const logger = require('./log')
 const fetchData = require('./fetch')
 const os = require("os")
 const {query, queryOne} = require('./mysql')
+const {fetchConfig} = require('../config/config')
 
 function sleep(milliSeconds) {
     const startTime = new Date().getTime();
@@ -33,7 +34,7 @@ const process = async () => {
             while (cities && cities.length > 0) {
                 const city = cities.shift();
                 await fetchData(city.year, city.code, city.latitude, city.longitude)
-                sleep(3000)
+                sleep(fetchConfig.sleepTime)
             }
         })
     }