SpringBoot使用GTS的示例详解

1. 依赖类库txc-client.jar, txt-client-spring-cloud-2.0.1.jar

2. 使用txcdatasource代理源数据源【注意：dbcp2.basicdatasource不支持，可以使用druiddatasource】

3. 添加自动配置类文件

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"}
    )
    //定义声明式事务，要想让事务annotation感知的话，要在这里定义一下
    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. 添加gts配置

spring:
    boot:
        txc:
           txcappname: demo
           txcservergroup: txc_test_public.1129361738553704.qd #公网测试的专用事务分组
           url: https://test-cs-gts.aliyuncs.com #公网测试url
           accesskey: xxx #非测试时需提供
           secretkey: xxxx #非测试时需提供

5. 发送rest请求时，请求添加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. 发起全局事务使用注解@txctransaction

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