johnsonchenchina / etherscan-explorer

Yet another implementation of etherscan.io

etherscan-explorer

Yet another implementation of etherscan.io

A preview is here ==> http://47.105.121.164/#/

web3j-app

It is a java project using spring boot and web3j. Jdk8, Gradle and Mysql should be pre-installed.

The folder web3j-app/app is the core module doing sync job and providing rest api for frontend.

The project should be started after geth, because it will use geth ipc file to sync blockchain data to mysql.

Custom configurations are made in files:

1. web3j-app/app/src/main/resources/application.properties

2. web3j-app/app/src/main/java/me/bing/web3j/app/common/Constant.java

3. web3j-app/app/src/main/resources/logback.xml

By default:

//web3j-app/app/src/main/java/me/bing/web3j/app/common/Constant.java

public static String IpcAddress = "/Users/bing/test/data/geth.ipc";
public static String CapAddress = "https://api.coinmarketcap.com/v1/ticker/ethereum/";

#web3j-app/app/src/main/resources/application.properties

spring.datasource.url = jdbc:mysql://localhost:3306/eth_test?useUnicode=true&characterEncoding=utf-8&useSSL=false
spring.datasource.username = root

<!--/data/applogs should be accessable-->

<property name="log_path" value="/data/applogs/web3j-app"/>

frontend

It is a project copied from https://github.com/nebulasio/explorer/tree/develop/explorer-front with little modification.

npm run dev # start in development
npm run build # build html&js which are in dist folder

Depoly on server

1. Pre-installation

   Nginx, Mysql, Java8, Geth

2. build frontend, target directory is dist

cp dist/* /var/www/html

3. build web3j-app, target jar is app/build/web3j-app-1.0.0.jar

4. configure mysql, if you donot want to set your root password

use mysql;
update user set authentication_string=PASSWORD("") where User='root';
update user set plugin="mysql_native_password" where User='root';

create tables with these schemes

5. It is recommanded to run geth via systemd

#/etc/systemd/system/geth.service

[Unit]
Description=geth

[Service]
Type=simple
User=root
Restart=always
WorkingDirectory=/root/webapp
ExecStart=/usr/bin/geth --datadir /Users/bing/test/data > geth.log

[Install]
WantedBy=default.target

#/etc/systemd/system/web3japp.service

[Unit]
Description=web3japp
After=geth.service

[Service]
Type=simple
User=root
Restart=always
WorkingDirectory=/root/webapp
ExecStart=/usr/bin/java -jar web3j-app-1.0.0.jar > app.log

[Install]
WantedBy=default.target

systemctl daemon-reload
systemctl enable geth && systemctl enable web3japp
systemctl start geth && systemctl start web3japp && systemctl restart nginx

Your contributions are welcome

The author is a newbie of gradle and vue, so there must be contributions you are willing to contribute.