记录本地搭建以太坊私链时出现的一个问题

Failed to connect to localhost/0:0:0:0:0:0:0:1:8545

解决方案：

Use this to start over localhost and will work:
geth --rpc --rpcaddr "127.0.0.1" --rpcport "8545"

You are currently using IPC as far I see.

见github：https://github.com/web3j/examples/issues/1