搭建测试链

1.创建创世块文件

新建文件 genesis.json，内容如下。

     {
       "config": {
          "chainId": 100, 
          "homesteadBlock": 0, 
          "eip155Block": 0, 
          "eip158Block": 0
      },
      "alloc" : {},
      "coinbase" : "0x0000000000000000000000000000000000000000",
      "difficulty" : "0x20000",
      "extraData" : "",
      "gasLimit" : "0x2fefd8",
      "nonce" : "0x0000000000000042",
      "mixhash" : "0x0000000000000000000000000000000000000000000000000000000000000000", "parentHash" : "0x0000000000000000000000000000000000000000000000000000000000000000", "timestamp" : "0x00"
      }

其中chainId为此测试网络的ID，主网的ID为1，difficulty为挖矿难度，为方便测试网络的运行，难度设置较低。

2.启动节点一

1.创建节点一的存储目录 nodedata1

mkdir nodedata1

2.使用 genesis.json 初始化节点一的创世区块

sipe init --datadir nodedata1 genesis.json

3.启动节点，指定 networkid，节点通信时须保证指定的networkid相同

sipe --datadir nodedata1 --port 30312 --rpc --rpcaddr 127.0.0.1 --rpcport 8541 --networkid 10001 console

4. 在开启的控制台中查看节点信息，获取本节点enode

> admin.nodeInfo 
{
enode: "enode://05a9c3bd1f6716a1806e677b8337d4e1eb4b9f57d8f94d11bcf4870fd8d5d943b9591 1a3c51f40714f33a307049d8c0c1a7019a71d099a27c6a939a85a809110@[::]:30312",
id: "05a9c3bd1f6716a1806e677b8337d4e1eb4b9f57d8f94d11bcf4870fd8d5d943b95911a3c51f4 0714f33a307049d8c0c1a7019a71d099a27c6a939a85a809110",
ip: "::",
listenAddr: "[::]:30312",
name: "Sipe/v1.0.2-stable-0cbf2a41/darwin-amd64/go1.12.1", 
ports: {
    discovery: 30312,
    listener: 30312
},
protocols: { 
    eth: {
      config: { 
        chainId: 100, 
        eip150Hash: "0x0000000000000000000000000000000000000000000000000000000000000000", 
        eip155Block: 0,
        eip158Block: 0,
        homesteadBlock: 0 
      },
      difficulty: 131072,
      genesis: "0x5e1fc79cb4ffa4739177b5408045cd5d51c6cf766133f23f7cd72ee1f8d790e0", 
      head: "0x5e1fc79cb4ffa4739177b5408045cd5d51c6cf766133f23f7cd72ee1f8d790e0", 
      network: 10001
  }}
}

3.启动节点二

1. 创建节点一的存储目录nodedata2

mkdir nodedata2

2. 使用 genesis.json初始化节点一的创世区块。

sipe init --datadir nodedata2 genesis.json

3. 启动节点，保证 networdid与节点一相同，注意配置bootnodes时将节点一获取的enode的[::]替换为节点一的IP地址，即127.0.0.1。

sipe --datadir nodedata2 --port 30313 --rpc --rpcaddr 127.0.0.1 --rpcport 8542 --networkid 10001 --bootnodes "enode://05a9c3bd1f6716a1806e677b8337d4e1eb4b9f57d8f94d11bcf4870fd8d5d943b9591 1a3c51f40714f33a307049d8c0c1a7019a71d099a27c6a939a85a809110@127.0.0.1:30312"
console

4. 查看关联节点信息，返回结果不为空即确认节点二与节点一连接成功。

> admin.peers [{
caps: ["eth/63"],
id: "05a9c3bd1f6716a1806e677b8337d4e1eb4b9f57d8f94d11bcf4870fd8d5d943b95911a3c51f4 0714f33a307049d8c0c1a7019a71d099a27c6a939a85a809110",
name: "Sipe/v1.0.2-stable-0cbf2a41/darwin-amd64/go1.12.1", network: {
inbound: false,
localAddress: "127.0.0.1:58388", 
remoteAddress: "127.0.0.1:30312",             
static: false,
trusted: false 
},
protocols: { 
      eth: {
          difficulty: 131072,
          head: "0x5e1fc79cb4ffa4739177b5408045cd5d51c6cf766133f23f7cd72ee1f8d790e0", 
          version: 63
      }
}
}]

3.在测试网络中挖矿

1.在节点一创建账号，并将其设置为矿工地址

> personal.newAccount()
Passphrase:
Repeat passphrase:="0x7f53309f95559c52d08f18724c0b24aa758d1953"
> miner.setEtherbase('0x7f53309f95559c52d08f18724c0b24aa758d1953') 
true

2.在节点一启动挖矿

> miner.start()
INFO [06-19|10:53:15.918] Updated mining threads threads=0
INFO [06-19|10:53:15.918] Transaction pool price threshold updated price=1000000000 
INFO [06-19|10:53:15.918] Starting mining operation
null
> INFO [06-19|10:53:15.918] Commit new mining work      number=1 txs=0 uncles=0
elapsed=207.516μs
INFO [06-19|10:53:47.601] Successfully sealed new block   number=1
hash=755f08...62e560
INFO [06-19|10:53:47.607] 🔨 mined potential block     number=1
hash=755f08...62e560

3.在节点二确认同步区块

INFO [06-19|10:53:49.246] Block synchronisation started
INFO [06-19|10:53:49.538] Imported new block headers count=2 elapsed=6.482ms number=2 hash=c7c0a9...79db3e ignored=0
INFO [06-19|10:53:49.539] Imported new chain segment blocks=2 txs=0 mgas=0.000 elapsed=766.945μs mgasps=0.000 number=2 hash=c7c0a9...79db3e cache=1.20kB
INFO [06-19|10:53:49.556] Imported new state entries count=3 elapsed=90.308μs processed=3 pending=0 retry=0 duplicate=0 unexpected=0
INFO [06-19|10:53:49.601] Fast sync complete, auto disabling
INFO [06-19|10:53:59.119] Imported new chain segment blocks=1 txs=0 mgas=0.000 elapsed=1.212ms mgasps=0.000 number=3 hash=6dd8b2...194509 cache=1.81kB

4.在测试网络中转账

1. 使用控制台创建另一个账户。

> personal.newAccount()
Passphrase:
Repeat passphrase: "0xf9143e3b7de8ce91e463e30480f5afe84d3067ba"

2. 转账前使用密码解锁转账人账户。

 > personal.unlockAccount('0x7f53309f95559c52d08f18724c0b24aa758d1953') Unlock account 0x7f53309f95559c52d08f18724c0b24aa758d1953
 Passphrase:
 true

3. 发送交易进行转账，其中from为转账人，这里是矿工地址，to为收款人，value是转账额度。

 > eth.sendTransaction({from:"0x7f53309f95559c52d08f18724c0b24aa758d1953",to:"0xf9143e 3b7de8ce91e463e30480f5afe84d3067ba",value:web3.toWei(10,"ether")}) "0x5a6fbb3161329ca2591b7ecbcaca8a15a94cac5d402fce929f24504c76b8b7bb"

4. 确认到账。

 > eth.getBalance('0xf9143e3b7de8ce91e463e30480f5afe84d3067ba') 10000000000000000000