Spring中的aware接口详情
234
2022-09-04
springboot注解Aspect实现方案
目录目标实现POM一些实体类CheckedParamProcessDbModel测试用的入参对象一些工具类Base64UtilSpringBootBeanUtilProcessBeanUtilCheckedTransmitableUtilPrivateTransmitableUtil一些BeanPostProcessTestCheckPostProcessAspect注解切面类 CheckedAop线程池配置持久化service审批用的service测试用的service审批用的controller测试用的controller开启异步功能测试
目标
本文提供一种自定义注解,来实现业务审批操作的DEMO,不包含审批流程的配置功能。具体方案是自定义一个Aspect注解,拦截sevice方法,将拦截的信息持久化,待审批;审批时获取持久化数据,执行目标方法。
实现
POM
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
一些实体类
CheckedParam
用于包装页面传进来的参数
package com.proc.model;
import java.util.List;
public class CheckedParam {
//业务标记,由页面传入,用于审批时页面根据tagPagejs解析data,渲染到页面,审批管理员可看到审批的内容
private String tagPageJs;
//页面传入的原始数据
private List
public String getTagPageJs() {
return tagPageJs;
}
public void setTagPageJs(String tagPageJs) {
this.tagPageJs = tagPageJs;
}
public List
return data;
}
public void setData(List
this.data = data;
}
}
ProcessDbModel
拦截的信息包装类,用于持久化数据
package com.proc.model;
public class ProcessDbModel {
//bean的目标类全限定名
private String targetClassName;
//拦截到的service方法名
private String methodName;
//页面传入的tagPageJs或Checked注解的tag
private String tag;
private String description;
//拦截到的service入参类型,包含泛型信息
private String paramTypes;
//拦截到的service入参值
private String paramArgs;
//拦截到的service入参值或页面传入的原始数据
private String data;
public String getTargetClassName() {
return targetClassName;
}
public void setTargetClassName(String targetClassName) {
this.targetClassName = targetClassName;
}
public String getMethodName() {
return methodName;
}
public void setMethodName(String methodName) {
this.methodName = methodName;
}
public String getTag() {
return tag;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public void setTag(String tag) {
this.tag = tag;
}
public String getParamTypes() {
return paramTypes;
}
public void setParamTypes(String paramTypes) {
this.paramTypes = paramTypes;
}
public String getParamArgs() {
return paramArgs;
}
public void setParamArgs(String paramArgs) {
this.paramArgs = paramArgs;
}
public String getData() {
return data;
}
public void setData(String data) {
this.data = data;
}
@Override
public String toString() {
return "ProcessDbModel [targetClassName=" + targetClassName + ", methodName=" + methodName + ", tag=" + tag
+ ", description=" + description + ", paramTypes=" + paramTypes + ", paramArgs=" + paramArgs + ", data="
+ data + "]";
}
}
测试用的入参对象
package com.proc.model;
import java.math.BigDecimal;
public class Score {
private BigDecimal langue;
private BigDecimal math;
private BigDecimal english;
public BigDecimal getLangue() {
return langue;
}
public void setLangue(BigDecimal langue) {
this.langue = langue;
}
public BigDecimal getMath() {
return math;
}
public void setMath(BigDecimal math) {
this.math = math;
}
public BigDecimal getEnglish() {
return english;
}
public void setEnglish(BigDecimal english) {
this.english = english;
}
@Override
public String toString() {
return "Score [langue=" + langue + ", math=" + math + ", english=" + english + "]";
}
}
package com.proc.model;
import java.util.List;
public class Person
private String name;
private String age;
private String sex;
private String testName;
private String salary;
private String work;
private List
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAge() {
return age;
}
public void setAge(String age) {
this.age = age;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public String getSalary() {
return salary;
}
public void setSalary(String salary) {
this.salary = salary;
}
public String getTestName() {
return testName;
}
public void setTestName(String testName) {
this.testName = testName;
}
public String getWork() {
return work;
}
public void setWork(String work) {
this.work = work;
}
public List
return grades;
}
public void setGrades(List
this.grades = grades;
}
@Override
public String toString() {
return "Person [name=" + name + ", age=" + age + ", sex=" + sex + ", testName=" + testName + ", salary="
+ salary + ", work=" + work + ", grades=" + grades + "]";
}
}
一些工具类
JacksonCanonicalUtil
package com.proc.util;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.json.JsonMapper;
public class JacksonCanonicalUtil {
private static final JsonMapper MAPPER = new JsonMapper();
private JacksonCanonicalUtil () {}
public static
return MAPPER.getTypeFactory().constructType(clazz).toCanonical();
}
public static
return MAPPER.getTypeFactory().constructType(tr).toCanonical();
}
//反序列化时从持久数据中获取JavaType
public static JavaType constructFromCanonical (String canonical) {
return MAPPER.getTypeFactory().constructFromCanonical(canonical);
}
}
StringZipUtil
用于压缩和解压字符串,减少持久数据占用空间
package com.proc.util;
import java.io.ByteArrayOutputStream;
import java.io.OutputStream;
import java.nio.charset.StandardCharsets;
import java.util.Base64;
import java.util.zip.DeflaterOutputStream;
import java.util.zip.InflaterOutputStream;
public class StringZipUtil {
private StringZipUtil () {}
public static String zipBase64(String text) {
try (ByteArrayOutputStream out = new ByteArrayOutputStream()) {
try (OutputStream os = new DeflaterOutputStream(out)) {
os.write(text.getBytes(StandardCharsets.UTF_8));
}
return Base64.getEncoder().encodeToString(out.toByteArray());
} catch (Exception e) {
throw new RuntimeException("压缩字符串出错", e);
}
}
public static String unzipBase64(String text) {
try (ByteArrayOutputStream out = new ByteArrayOutputStream()) {
try (OutputStream os = new InflaterOutputStream(out)) {
os.write(Base64.getDecoder().decode(text));
}
return new String(out.toByteArray(), StandardCharsets.UTF_8);
} catch (Exception e) {
throw new RuntimeException("解压字符串出错", e);
}
}
}
Base64Util
一些参数值转为Base64后持久化
package com.proc.util;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.Base64;
import java.util.List;
import java.util.stream.Collectors;
import com.fasterxml.jackson.databind.json.JsonMapper;
public class Base64Util {
private Base64Util () {}
private static final JsonMapper MAPPER = new JsonMapper();
public static String[] toStrings (Object[] objs) {
List
try {
for (Object obj : objs) {
list.add(MAPPER.writeValueAsString(obj));
}
} catch (Exception e) {
throw new RuntimeException("序列化对象出错", e);
}
return list.toArray(new String[0]);
}
public static String encode (String[] strs) {
List
for (String str : strs) {
list.add(Base64.getEncoder().encodeToString(str.getBytes(StandardCharsets.UTF_8)));
}
String join = list.stream().collect(Collectors.joining("|"));
return join;
}
public static String[] decode (String text) {
String[] strs = text.split("\\|", -1);
List
for (String base64 : strs) {
list.add(new String(Base64.getDecoder().decode(base64), StandardCharsets.UTF_8));
}
return list.toArray(new String[0]);
}
public static String encodeZip (Object[] objs) {
return encodeZip(toStrings(objs));
}
public static String encodeZip (String[] strs) {
List
for (String str : strs) {
list.add(StringZipUtil.zipBase64(str));
}
String join = list.stream().collect(Collectors.joining("|"));
return StringZipUtil.zipBase64(join);
}
public static String[] decodeZip (String text) {
String str = StringZipUtil.unzipBase64(text);
String[] strs = str.split("\\|", -1);
List
for (String base64 : strs) {
list.add(StringZipUtil.unzipBase64(base64));
}
return list.toArray(new String[0]);
}
}
SpringBootBeanUtil
package com.proc.util;
import java.util.Map;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;
@Component
public class SpringBootBeanUtil implements ApplicationContextAware {
private static ApplicationContext applicationContext;
@Override
public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
SpringBootBeanUtil.applicationContext = applicationContext;
}
public static ApplicationContext getApplicationContext() {
return applicationContext;
}
public static Object getBean(String name) {
return applicationContext.getBean(name);
}
public static
return (T) applicationContext.getBean(clazz);
}
public static
return applicationContext.getBean(name, clazz);
}
public static
return applicationContext.getBeansOfType(clazz);
}
}
ProcessBeanUtil
用于执行目标方法
package com.proc.util;
import java.lang.reflect.Method;
import org.springframework.util.ReflectionUtils;
public class ProcessBeanUtil {
private ProcessBeanUtil () {}
public static Object excuteBeanMethod (String targetClassName, String methodName, Class>[] parameterTypes, Object[] args) {
Class> targetClass;
try {
targetClass = Class.forName(targetClassName);
} catch (ClassNotFoundException e) {
throw new RuntimeException("未找到类", e);
}
return excuteBeanMethod(targetClass, methodName, parameterTypes, args);
}
public static Object excuteBeanMethod (Class> targetClass, String methodName, Class>[] parameterTypes, Object[] args) {
Object bean = SpringBootBeanUtil.getBean(targetClass);
Method method = ReflectionUtils.findMethod(targetClass, methodName, parameterTypes);
return ReflectionUtils.invokeMethod(method, bean, args);
}
}
CheckedTransmitableUtil
用于传递业务参数
package com.proc.util;
import com.alibaba.ttl.TransmittableThreadLocal;
import com.proc.model.CheckedParam;
public class CheckedTransmitableUtil {
private static final TransmittableThreadLocal
private CheckedTransmitableUtil () {}
public static void set (CheckedParam checkedParam) {
threadLocal.set(checkedParam);
}
public static CheckedParam getAndRemove () {
CheckedParam checkedParam = threadLocal.get();
threadLocal.remove();
return checkedParam;
}
}
PrivateTransmitableUtil
为Aspect判断是否拦截提供依据
package com.proc.util;
import com.alibaba.ttl.TransmittableThreadLocal;
public class PrivateTransmitableUtil {
private static final String CHECKED = "__CHECKED__";
private static final TransmittableThreadLocal
private PrivateTransmitableUtil () {}
public static void set () {
threadLocal.set(CHECKED);
}
//是否执行的审批程序
public static boolean isCheck () {
String checked = threadLocal.get();
threadLocal.remove();
return CHECKED.equals(checked);
}
}
一些Bean
PostProcess
用于拦截方法后做的个性处理
package com.proc.bean;
public interface PostProcess
//返回说明内容,审批时在页面显示
String description(String tag, Class>[] parameterTypes, Object[] args);
//返回代替的返回值
T retObject(String tag, Class>[] parameterTypes, Object[] args);
}
TestCheckPostProcess
测试用
package com.proc.bean;
import org.springframework.stereotype.Component;
@Component
public class TestCheckPostProcess implements PostProcess
@Override
public String description(String tag, Class>[] parameterTypes, Object[] args) {
return tag + "测试testCheck";
}
@Override
public String retObject(String tag, Class>[] parameterTypes, Object[] args) {
return tag + "返回拦截响应";
}
}
Aspect注解
package com.proc.config;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.RetentionPolicy.RUNTIME;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;
import com.proc.bean.PostProcess;
@Retention(RUNTIME)
@Target(METHOD)
public @interface Checked {
String tag() default "";
/**
* @see com.proc.util.JacksonCanonicalUtil
* @return
*/
String[] paramCanonical();
Class extends PostProcess>> postProcess();
}
切面类 CheckedAop
package com.proc.config;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import com.proc.bean.PostProcess;
import com.proc.model.CheckedParam;
import com.proc.model.ProcessDbModel;
import com.proc.service.ProcessDbService;
import com.proc.util.Base64Util;
import com.proc.util.CheckedTransmitableUtil;
import com.proc.util.PrivateTransmitableUtil;
import com.proc.util.SpringBootBeanUtil;
@Component
@Aspect
public class CheckedAop {
@Autowired
private ProcessDbService processDbService;
//拦截Checked注释的方法
@Pointcut("@annotation(com.proc.config.Checked)")
public void check() {
}
@Around(value = "com.proc.config.CheckedAop.check() && @annotation(checked)")
public Object around(ProceedingJoinPoint joinPoint, Checked checked) throws Throwable {
MethodSignature signature = (MethodSignature) joinPoint.getSignature();
Class>[] parameterTypes = signature.getParameterTypes();
String methodName = signature.getMethod().getName();
Object[] args = joinPoint.getArgs();
if (PrivateTransmitableUtil.isCheck()) {
//审批后,执行业务代码
Object returnVal = joinPoint.proceed();
return returnVal;
} else {
//不是审批操作,拦截
Class extends PostProcess>> postProcess = checked.postProcess();
PostProcess> bean = SpringBootBeanUtil.getBean(postProcess);
//组装持久化数据
ProcessDbModel dbModel = new ProcessDbModel();
dbModel.setTargetClassName(joinPoint.getTarget().getClass().getName());
dbModel.setMethodName(methodName);
String tag = checked.tag();
CheckedParam checkedParam = CheckedTransmitableUtil.getAndRemove();
if (checkedParam == null || checkedParam.getTagPageJs() == null || checkedParam.getTagPageJs().isEmpty()) {
//不是页面调用的业务,使用注解的tag,data保存为service的参数,这时需要页面专门解析渲染
String[] argStrs = Base64Util.toStrings(args);
dbModel.setParamArgs(Base64Util.encodeZip(argStrs));
dbModel.setData(Base64Util.encode(argStrs));
} else {
tag = checkedParam.getTagPageJs();
dbModel.setParamArgs(Base64Util.encodeZip(args));
dbModel.setData(Base64Util.encode(checkedParam.getData().toArray(new String[0])));
}
dbModel.setTag(tag);
dbModel.setParamTypes(Base64Util.encodeZip(checked.paramCanonical()));
dbModel.setDescription(bean.description(tag, parameterTypes, args));
//持久化数据
processDbService.save(dbModel);
return bean.retObject(tag, parameterTypes, args);
}
}
}
线程池配置
测试用
package com.proc.config;
import java.util.concurrent.Executor;
import java.util.concurrent.ThreadPoolExecutor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
import com.alibaba.ttl.threadpool.TtlExecutors;
@Configuration
public class TaskExecutePoolConfig {
@Bean
public Executor processExecutor() {
ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
//核心线程池大小
executor.setCorePoolSize(10);
//最大线程数
executor.setMaxPoolSize(10);
//队列容量
executor.setQueueCapacity(500);
//活跃时间
executor.setKeepAliveSeconds(60);
//线程名字前缀
executor.setThreadNamePrefix("ProcessExecutor-");
executor.setRejectedExecutionHandler(new ThreadPoolExecutor.AbortPolicy());
// 等待所有任务结束后再关闭线程池
executor.setWaitForTasksToCompleteOnShutdown(true);
executor.initialize();
//用transmittable-thread-local包装,才可以正确给线程池中的线程传递数据
return TtlExecutors.getTtlExecutor(executor);
}
}
持久化service
为测试方便,未真正实现持久化
package com.proc.service;
import com.proc.model.ProcessDbModel;
public interface ProcessDbService {
void save (ProcessDbModel model);
ProcessDbModel get ();
}
package com.proc.service.impl;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import com.proc.model.ProcessDbModel;
import com.proc.service.ProcessDbService;
@Component
public class ProcessDbServiceImpl implements ProcessDbService {
private static final Logger log = LoggerFactory.getLogger(ProcessDbService.class);
private volatile ProcessDbModel model;
@Override
public void save(ProcessDbModel model) {
this.model = model;
log.info(model.toString());
}
@Override
public ProcessDbModel get() {
return this.model;
}
}
审批用的service
package com.proc.service;
import com.proc.model.ProcessDbModel;
public interface ProcessCheckService {
void process (ProcessDbModel model);
}
package com.proc.service.impl;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.json.JsonMapper;
import com.proc.model.ProcessDbModel;
import com.proc.service.ProcessCheckService;
import com.proc.util.Base64Util;
import com.proc.util.JacksonCanonicalUtil;
import com.proc.util.PrivateTransmitableUtil;
import com.proc.util.ProcessBeanUtil;
@Service
public class ProcessCheckServiceImpl implements ProcessCheckService {
private static final Logger log = LoggerFactory.getLogger(ProcessCheckServiceImpl.class);
private static final JsonMapper MAPPER = new JsonMapper();
@Override
public void process(ProcessDbModel model) {
PrivateTransmitableUtil.set();
String[] paramArgs = Base64Util.decodeZip(model.getParamArgs());
String[] paramTypes = Base64Util.decodeZip(model.getParamTypes());
List
List
try {
for (int i = 0; i < paramTypes.length; i++) {
JavaType javaType = JacksonCanonicalUtil.constructFromCanonical(paramTypes[i]);
parameterTypes.add(javaType.getRawClass());
args.add(MAPPER.readValue(paramArgs[i], javaType));
}
} catch (JsonProcessingException e) {
throw new RuntimeException("反序列化对象出错", e);
}
Object ret = ProcessBeanUtil.excuteBeanMethod(
model.getTargetClassName(),
model.getMethodName(),
parameterTypes.toArray(new Class>[0]),
args.toArray(new Object[0])
);
log.info(Objects.toString(ret));
}
}
测试用的service
package com.proc.service;
import com.proc.model.Person;
import com.proc.model.Score;
public interface TestService {
String testCheck(Person
String testCheck2(Person
String testCheckAsync(Person
}
package com.proc.service.impl;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Service;
import com.proc.bean.TestCheckPostProcess;
import com.proc.config.Checked;
import com.proc.model.Person;
import com.proc.model.Score;
import com.proc.service.TestService;
@Service
public class TestServiceImpl implements TestService {
private static final Logger log = LoggerFactory.getLogger(TestServiceImpl.class);
//paramCanonical对应testCheck的参数类型
@Checked(
paramCanonical = {"com.proc.model.Person
postProcess = TestCheckPostProcess.class)
@Override
public String testCheck(Person
log.info(team + ">>>>" + person);
return "target方法";
}
@Checked(
tag = "A1",
paramCanonical = {"com.proc.model.Person
postProcess = TestCheckPostProcess.class)
@Override
public String testCheck2(Person
log.info(team + ">>2>>" + person);
return "target2方法";
}
@Async("processExecutor")
@Checked(
paramCanonical = {"com.proc.model.Person
postProcess = TestCheckPostProcess.class)
@Override
public String testCheckAsync(Person
log.info(team + ">>>>" + person);
return "target方法";
}
}
审批用的controller
package com.proc.ctrl;
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 com.proc.model.ProcessDbModel;
import com.proc.service.ProcessCheckService;
import com.proc.service.ProcessDbService;
@RestController
public class ProcessCheckController {
private static final Logger log = LoggerFactory.getLogger(ProcessCheckController.class);
@Autowired
private ProcessDbService processDbService;
@Autowired
private ProcessCheckService processCheckService;
@GetMapping(value = "process")
public String process() {
ProcessDbModel processDbModel = processDbService.get();
log.info(processDbModel.toString());
processCheckService.process(processDbModel);
return "审批成功";
}
}
测试用的controller
package com.proc.ctrl;
import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import com.proc.model.CheckedParam;
import com.proc.model.Person;
import com.proc.model.Score;
import com.proc.service.TestService;
import com.proc.util.CheckedTransmitableUtil;
@RestController
public class TestController {
@Autowired
private TestService testService;
//模拟页面调用
@GetMapping(value = "index")
public String testCheck() {
CheckedParam checkedParam = new CheckedParam();
checkedParam.setTagPageJs("01");
List
data.add("前端传进来的数据1");
data.add("前端传进来的数据2");
checkedParam.setData(data);
CheckedTransmitableUtil.set(checkedParam);
Person
person.setName("一个人");
person.setAge("18");
person.setSex("1");
person.setSalary("20000.00");
person.setTestName("测试人");
person.setWork("工作");
Score score1 = new Score();
score1.setEnglish(new BigDecimal("12.4"));
score1.setLangue(new BigDecimal("764"));
score1.setMath(new BigDecimal("87.4"));
Score score2 = new Score();
score2.setEnglish(new BigDecimal("12.4"));
score2.setLangue(new BigDecimal("764"));
score2.setMath(new BigDecimal("87.4"));
List
list.add(score1);
list.add(score2);
person.setGrades(list);
testService.testCheck(person, "team>>>>>>>>");
return "12345";
}
//模拟其他渠道调用
@GetMapping(value = "index2")
public String testCheck2() {
Person
person.setName("一个人");
person.setAge("18");
person.setSex("1");
person.setSalary("20000.00");
person.setTestName("测试人");
person.setWork("工作");
Score score1 = new Score();
score1.setEnglish(new BigDecimal("12.4"));
score1.setLangue(new BigDecimal("764"));
score1.setMath(new BigDecimal("87.4"));
Score score2 = new Score();
score2.setEnglish(new BigDecimal("12.4"));
score2.setLangue(new BigDecimal("764"));
score2.setMath(new BigDecimal("87.4"));
List
list.add(score1);
list.add(score2);
person.setGrades(list);
testService.testCheck2(person, "team>>>2>>>>>");
return "12345";
}
//模拟调用异步方法
@GetMapping(value = "index3")
public String testCheckAsync() {
CheckedParam checkedParam = new CheckedParam();
checkedParam.setTagPageJs("01");
List
data.add("前端传进来的数据1");
data.add("前端传进来的数据2");
checkedParam.setData(data);
CheckedTransmitableUtil.set(checkedParam);
Person
person.setName("一个人");
person.setAge("18");
person.setSex("1");
person.setSalary("20000.00");
person.setTestName("测试人");
person.setWork("工作");
Score score1 = new Score();
score1.setEnglish(new BigDecimal("12.4"));
score1.setLangue(new BigDecimal("764"));
score1.setMath(new BigDecimal("87.4"));
Score score2 = new Score();
score2.setEnglish(new BigDecimal("12.4"));
score2.setLangue(new BigDecimal("764"));
score2.setMath(new BigDecimal("87.4"));
List
list.add(score1);
list.add(score2);
person.setGrades(list);
testService.testCheckAsync(person, "team>>>3>>>>>");
return "12345";
}
}
开启异步功能
package com.proc;
import org.springframework.boot.SpringApplication;
import org.springframeFHevnework.boot.autoconfigure.SpringBootApplication;
import org.springframework.scheduling.annotation.EnableAsync;
@SpringBootApplication
@EnableAsync
public class ProcessTestApplication {
public static void main(String[] args) {
SpringApplication.run(ProcessTestApplication.class, args);
}
}
测试
http://localhost:8080/indexhttp://localhost:8080/index2http://localhost:8080/index3浏览器访问上面其中一个路径一次,再访问http://localhost:8080/process一次即可
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