Detailed Explanation of SpringBoot Using GTS Example

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