Detailed Explanation of SpringBoot Using GTS Example
- 2021-11-24 01:35:53
- OfStack
1. Dependent class libraries txc-client. jar, txt-client-spring-cloud-2. 0.1. jar
2. Use TxcDataSource proxy source data source [Note: dbcp2.BasicDataSource is not supported, DruidDataSource can be used]
3. Add an auto-configuration class file
package com.bodytrack.restapi;
import com.taobao.txc.client.aop.TxcTransactionScaner;
import com.taobao.txc.client.boot.TxcSpringBootProperties;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.DependsOn;
@Configuration
@EnableConfigurationProperties({TxcSpringBootProperties.class})
public class TxcSpringBootAutoConfiguration {
@Autowired
private TxcSpringBootProperties txcSpringBootProperties;
@Autowired
private ApplicationContext applicationContext;
private static boolean isEmpty(String str) {
return str == null || str.length() == 0;
}
@Bean(name = "txcScanner")
@ConditionalOnProperty(
prefix = "spring.boot.txc",
name = {"txcServerGroup"}
)
// Define declarative transactions, and if you want transactions annotation If you perceive it, you should define it here 1 Under
public TxcTransactionScaner txcTransactionScaner() {
String appName = this.txcSpringBootProperties.getTxcAppName() == null ? this.applicationContext.getEnvironment().getProperty("spring.application.name") : this.txcSpringBootProperties.getTxcAppName();
String txServiceGroup = this.txcSpringBootProperties.getTxcServerGroup();
int mode = this.txcSpringBootProperties.getMode() == 0 ? 1 : this.txcSpringBootProperties.getMode();
TxcTransactionScaner txcTransactionScanner = new TxcTransactionScaner(appName, txServiceGroup, mode, this.txcSpringBootProperties.getUrl());
if (!isEmpty(this.txcSpringBootProperties.getAccessKey())) {
txcTransactionScanner.setAccessKey(this.txcSpringBootProperties.getAccessKey());
}
if (!isEmpty(this.txcSpringBootProperties.getSecretKey())) {
txcTransactionScanner.setSecretKey(this.txcSpringBootProperties.getSecretKey());
}
return txcTransactionScanner;
}
}
4. Add GTS configuration
spring:
boot:
txc:
txcAppName: demo
txcServerGroup: txc_test_public.1129361738553704.QD # Private transaction grouping for public network test
url: https://test-cs-gts.aliyuncs.com # Public network test url
accessKey: xxx # Required for non-testing
secretKey: xxxx # Required for non-testing
5. When sending rest request, request to add header (TXC_XID, BEGIN_COUNT, COMMIT_COUNT)
public String callTestTxc() {
HttpHeaders requestHeaders = new HttpHeaders();
requestHeaders.set("TXC_XID", String.valueOf(TxcContext.getCurrentXid()));
requestHeaders.set("BEGIN_COUNT", String.valueOf(TxcContext.getBeginCount()));
requestHeaders.set("COMMIT_COUNT", String.valueOf(TxcContext.getCommitCount()));
HttpEntity<String> entity = new HttpEntity<>("parameters", requestHeaders);
String restUrl = String.format("%s/api/scoreService/testTxc", "http://10.0.0.5:8762");
ResponseEntity<String> restData = restTemplate.exchange(restUrl, HttpMethod.GET, entity, String.class);
return restData.toString();
}
6. Initiate a global transaction using the annotation @ TxcTransaction