11.21. Springboot with Ethereum (web3j)
<dependency>
<groupId>org.web3j</groupId>
<artifactId>web3j-spring-boot-starter</artifactId>
<version>1.6.0</version>
</dependency>
11.21.2. application.properties
web3j.client-address=https://ropsten.infura.io/CsS9shwaAab0z7B4LP2d
web3j.admin-client=true
11.21.3. TestRestController
package cn.netkiller.wallet.restful;
import java.io.IOException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import org.web3j.protocol.Web3j;
import org.web3j.protocol.core.methods.response.Web3ClientVersion;
@RestController
public class TestRestController {
private static final Logger logger = LoggerFactory.getLogger(TestRestController.class);
@Autowired
private Web3j web3j;
public TestRestController() {
// TODO Auto-generated constructor stub
}
@GetMapping("/version")
public String version() throws IOException {
Web3ClientVersion web3ClientVersion = web3j.web3ClientVersion().send();
String clientVersion = web3ClientVersion.getWeb3ClientVersion();
logger.info(clientVersion);
return clientVersion;
}
}
neo@MacBook-Pro ~ % curl http://localhost:8080/version
Geth/v1.8.3-stable/linux-amd64/go1.10
