|  |  | 
 |  |  |      * 服务器地址
 | 
 |  |  |      */
 | 
 |  |  |     //private static final String ETH_UTL = "https://mainnet.infura.io/v3/882c66ebcfc141abbea22b948fa44321";
 | 
 |  |  |     private static final String ETH_UTL = "http://120.55.86.146:8545";
 | 
 |  |  |     private static final String ETH_UTL = "http://114.55.250.231:8545";
 | 
 |  |  | 
 | 
 |  |  |     public EthService() {
 | 
 |  |  |         try {
 | 
 
 |  |  | 
 |  |  |         return Web3j.build(httpService); | 
 |  |  |     } | 
 |  |  |  | 
 |  |  |     private static String blockchainNode = "http://120.55.86.146:8545"; | 
 |  |  |     private static String blockchainNode = "http://114.55.250.231:8545"; | 
 |  |  |  | 
 |  |  |     private static String contractAddr = "0xdac17f958d2ee523a2206206994597c13d831ec7"; | 
 |  |  |  |