feat:初始化工程

This commit is contained in:
2026-06-10 18:15:28 +08:00
commit 51bb8b2c9b
11 changed files with 672 additions and 0 deletions

38
.gitignore vendored Normal file
View File

@@ -0,0 +1,38 @@
target/
!.mvn/wrapper/maven-wrapper.jar
!**/src/main/**/target/
!**/src/test/**/target/
### IntelliJ IDEA ###
.idea/modules.xml
.idea/jarRepositories.xml
.idea/compiler.xml
.idea/libraries/
*.iws
*.iml
*.ipr
### Eclipse ###
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache
### NetBeans ###
/nbproject/private/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
build/
!**/src/main/**/build/
!**/src/test/**/build/
### VS Code ###
.vscode/
### Mac OS ###
.DS_Store

3
.idea/.gitignore generated vendored Normal file
View File

@@ -0,0 +1,3 @@
# 默认忽略的文件
/shelf/
/workspace.xml

439
.idea/dbnavigator.xml generated Normal file
View File

@@ -0,0 +1,439 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="DBNavigator.Project.DDLFileAttachmentManager">
<mappings />
<preferences />
</component>
<component name="DBNavigator.Project.DatabaseAssistantManager">
<assistants />
</component>
<component name="DBNavigator.Project.DatabaseFileManager">
<open-files />
</component>
<component name="DBNavigator.Project.Settings">
<connections />
<browser-settings>
<general>
<display-mode value="TABBED" />
<navigation-history-size value="100" />
<show-object-details value="false" />
<enable-sticky-paths value="true" />
<enable-quick-filters value="false" />
</general>
<filters>
<object-type-filter>
<object-type name="SCHEMA" enabled="true" />
<object-type name="USER" enabled="true" />
<object-type name="ROLE" enabled="true" />
<object-type name="PRIVILEGE" enabled="true" />
<object-type name="CHARSET" enabled="true" />
<object-type name="TABLE" enabled="true" />
<object-type name="VIEW" enabled="true" />
<object-type name="JSON_VIEW" enabled="true" />
<object-type name="MATERIALIZED_VIEW" enabled="true" />
<object-type name="NESTED_TABLE" enabled="true" />
<object-type name="COLUMN" enabled="true" />
<object-type name="INDEX" enabled="true" />
<object-type name="CONSTRAINT" enabled="true" />
<object-type name="DATASET_TRIGGER" enabled="true" />
<object-type name="DATABASE_TRIGGER" enabled="true" />
<object-type name="SYNONYM" enabled="true" />
<object-type name="SEQUENCE" enabled="true" />
<object-type name="PROCEDURE" enabled="true" />
<object-type name="FUNCTION" enabled="true" />
<object-type name="PACKAGE" enabled="true" />
<object-type name="TYPE" enabled="true" />
<object-type name="TYPE_ATTRIBUTE" enabled="true" />
<object-type name="ARGUMENT" enabled="true" />
<object-type name="JAVA_CLASS" enabled="true" />
<object-type name="JAVA_FIELD" enabled="true" />
<object-type name="JAVA_METHOD" enabled="true" />
<object-type name="JAVA_RESOURCE" enabled="true" />
<object-type name="DIMENSION" enabled="true" />
<object-type name="CLUSTER" enabled="true" />
<object-type name="DBLINK" enabled="true" />
<object-type name="CREDENTIAL" enabled="true" />
<object-type name="AI_PROFILE" enabled="true" />
</object-type-filter>
</filters>
<sorting>
<object-type name="COLUMN" sorting-type="NAME" />
<object-type name="FUNCTION" sorting-type="NAME" />
<object-type name="PROCEDURE" sorting-type="NAME" />
<object-type name="ARGUMENT" sorting-type="POSITION" />
<object-type name="TYPE ATTRIBUTE" sorting-type="POSITION" />
</sorting>
<default-editors>
<object-type name="VIEW" editor-type="SELECTION" />
<object-type name="PACKAGE" editor-type="SELECTION" />
<object-type name="TYPE" editor-type="SELECTION" />
</default-editors>
</browser-settings>
<navigation-settings>
<lookup-filters>
<lookup-objects>
<object-type name="SCHEMA" enabled="true" />
<object-type name="USER" enabled="false" />
<object-type name="ROLE" enabled="false" />
<object-type name="PRIVILEGE" enabled="false" />
<object-type name="CHARSET" enabled="false" />
<object-type name="TABLE" enabled="true" />
<object-type name="VIEW" enabled="true" />
<object-type name="JSON VIEW" enabled="true" />
<object-type name="MATERIALIZED VIEW" enabled="true" />
<object-type name="INDEX" enabled="true" />
<object-type name="CONSTRAINT" enabled="true" />
<object-type name="DATASET TRIGGER" enabled="true" />
<object-type name="DATABASE TRIGGER" enabled="true" />
<object-type name="SYNONYM" enabled="false" />
<object-type name="SEQUENCE" enabled="true" />
<object-type name="PROCEDURE" enabled="true" />
<object-type name="FUNCTION" enabled="true" />
<object-type name="PACKAGE" enabled="true" />
<object-type name="TYPE" enabled="true" />
<object-type name="JAVA CLASS" enabled="true" />
<object-type name="INNER CLASS" enabled="true" />
<object-type name="JAVA FIELD" enabled="true" />
<object-type name="JAVA METHOD" enabled="true" />
<object-type name="JAVA PARAMETER" enabled="true" />
<object-type name="JAVA RESOURCE" enabled="true" />
<object-type name="DIMENSION" enabled="false" />
<object-type name="CLUSTER" enabled="false" />
<object-type name="DBLINK" enabled="false" />
<object-type name="CREDENTIAL" enabled="false" />
</lookup-objects>
<force-database-load value="false" />
<prompt-connection-selection value="true" />
<prompt-schema-selection value="true" />
</lookup-filters>
</navigation-settings>
<dataset-grid-settings>
<general>
<enable-zooming value="true" />
<enable-column-tooltip value="true" />
</general>
<sorting>
<nulls-first value="true" />
<max-sorting-columns value="4" />
</sorting>
<audit-columns>
<column-names value="" />
<visible value="true" />
<editable value="false" />
</audit-columns>
</dataset-grid-settings>
<dataset-editor-settings>
<text-editor-popup>
<active value="false" />
<active-if-empty value="false" />
<data-length-threshold value="100" />
<popup-delay value="1000" />
</text-editor-popup>
<values-actions-popup>
<show-popup-button value="true" />
<element-count-threshold value="1000" />
<data-length-threshold value="250" />
</values-actions-popup>
<general>
<fetch-block-size value="100" />
<fetch-timeout value="30" />
<trim-whitespaces value="true" />
<convert-empty-strings-to-null value="true" />
<select-content-on-cell-edit value="true" />
<large-value-preview-active value="true" />
</general>
<filters>
<prompt-filter-dialog value="true" />
<default-filter-type value="BASIC" />
</filters>
<qualified-text-editor text-length-threshold="300">
<content-types>
<content-type name="Text" enabled="true" />
<content-type name="Properties" enabled="true" />
<content-type name="XML" enabled="true" />
<content-type name="DTD" enabled="true" />
<content-type name="HTML" enabled="true" />
<content-type name="XHTML" enabled="true" />
<content-type name="Java" enabled="true" />
<content-type name="SQL" enabled="true" />
<content-type name="PL/SQL" enabled="true" />
<content-type name="JSON" enabled="true" />
<content-type name="JSON5" enabled="true" />
<content-type name="Groovy" enabled="true" />
<content-type name="YAML" enabled="true" />
<content-type name="Manifest" enabled="true" />
</content-types>
</qualified-text-editor>
<record-navigation>
<navigation-target value="VIEWER" />
</record-navigation>
</dataset-editor-settings>
<code-editor-settings>
<general>
<show-object-navigation-gutter value="false" />
<show-spec-declaration-navigation-gutter value="true" />
<enable-spellchecking value="true" />
<enable-reference-spellchecking value="false" />
</general>
<confirmations>
<save-changes value="false" />
<revert-changes value="true" />
<exit-on-changes value="ASK" />
</confirmations>
</code-editor-settings>
<code-completion-settings>
<filters>
<basic-filter>
<filter-element type="RESERVED_WORD" id="keyword" selected="true" />
<filter-element type="RESERVED_WORD" id="function" selected="true" />
<filter-element type="RESERVED_WORD" id="parameter" selected="true" />
<filter-element type="RESERVED_WORD" id="datatype" selected="true" />
<filter-element type="RESERVED_WORD" id="exception" selected="true" />
<filter-element type="OBJECT" id="schema" selected="true" />
<filter-element type="OBJECT" id="role" selected="true" />
<filter-element type="OBJECT" id="user" selected="true" />
<filter-element type="OBJECT" id="privilege" selected="true" />
<user-schema>
<filter-element type="OBJECT" id="table" selected="true" />
<filter-element type="OBJECT" id="view" selected="true" />
<filter-element type="OBJECT" id="json view" selected="true" />
<filter-element type="OBJECT" id="materialized view" selected="true" />
<filter-element type="OBJECT" id="index" selected="true" />
<filter-element type="OBJECT" id="constraint" selected="true" />
<filter-element type="OBJECT" id="trigger" selected="true" />
<filter-element type="OBJECT" id="synonym" selected="false" />
<filter-element type="OBJECT" id="sequence" selected="true" />
<filter-element type="OBJECT" id="procedure" selected="true" />
<filter-element type="OBJECT" id="function" selected="true" />
<filter-element type="OBJECT" id="package" selected="true" />
<filter-element type="OBJECT" id="type" selected="true" />
<filter-element type="OBJECT" id="dimension" selected="true" />
<filter-element type="OBJECT" id="cluster" selected="true" />
<filter-element type="OBJECT" id="dblink" selected="true" />
</user-schema>
<public-schema>
<filter-element type="OBJECT" id="table" selected="false" />
<filter-element type="OBJECT" id="view" selected="false" />
<filter-element type="OBJECT" id="json view" selected="false" />
<filter-element type="OBJECT" id="materialized view" selected="false" />
<filter-element type="OBJECT" id="index" selected="false" />
<filter-element type="OBJECT" id="constraint" selected="false" />
<filter-element type="OBJECT" id="trigger" selected="false" />
<filter-element type="OBJECT" id="synonym" selected="false" />
<filter-element type="OBJECT" id="sequence" selected="false" />
<filter-element type="OBJECT" id="procedure" selected="false" />
<filter-element type="OBJECT" id="function" selected="false" />
<filter-element type="OBJECT" id="package" selected="false" />
<filter-element type="OBJECT" id="type" selected="false" />
<filter-element type="OBJECT" id="dimension" selected="false" />
<filter-element type="OBJECT" id="cluster" selected="false" />
<filter-element type="OBJECT" id="dblink" selected="false" />
</public-schema>
<any-schema>
<filter-element type="OBJECT" id="table" selected="true" />
<filter-element type="OBJECT" id="view" selected="true" />
<filter-element type="OBJECT" id="json view" selected="true" />
<filter-element type="OBJECT" id="materialized view" selected="true" />
<filter-element type="OBJECT" id="index" selected="true" />
<filter-element type="OBJECT" id="constraint" selected="true" />
<filter-element type="OBJECT" id="trigger" selected="true" />
<filter-element type="OBJECT" id="synonym" selected="true" />
<filter-element type="OBJECT" id="sequence" selected="true" />
<filter-element type="OBJECT" id="procedure" selected="true" />
<filter-element type="OBJECT" id="function" selected="true" />
<filter-element type="OBJECT" id="package" selected="true" />
<filter-element type="OBJECT" id="type" selected="true" />
<filter-element type="OBJECT" id="dimension" selected="true" />
<filter-element type="OBJECT" id="cluster" selected="true" />
<filter-element type="OBJECT" id="dblink" selected="true" />
</any-schema>
</basic-filter>
<extended-filter>
<filter-element type="RESERVED_WORD" id="keyword" selected="true" />
<filter-element type="RESERVED_WORD" id="function" selected="true" />
<filter-element type="RESERVED_WORD" id="parameter" selected="true" />
<filter-element type="RESERVED_WORD" id="datatype" selected="true" />
<filter-element type="RESERVED_WORD" id="exception" selected="true" />
<filter-element type="OBJECT" id="schema" selected="true" />
<filter-element type="OBJECT" id="user" selected="true" />
<filter-element type="OBJECT" id="role" selected="true" />
<filter-element type="OBJECT" id="privilege" selected="true" />
<user-schema>
<filter-element type="OBJECT" id="table" selected="true" />
<filter-element type="OBJECT" id="view" selected="true" />
<filter-element type="OBJECT" id="json view" selected="true" />
<filter-element type="OBJECT" id="materialized view" selected="true" />
<filter-element type="OBJECT" id="index" selected="true" />
<filter-element type="OBJECT" id="constraint" selected="true" />
<filter-element type="OBJECT" id="trigger" selected="true" />
<filter-element type="OBJECT" id="synonym" selected="true" />
<filter-element type="OBJECT" id="sequence" selected="true" />
<filter-element type="OBJECT" id="procedure" selected="true" />
<filter-element type="OBJECT" id="function" selected="true" />
<filter-element type="OBJECT" id="package" selected="true" />
<filter-element type="OBJECT" id="type" selected="true" />
<filter-element type="OBJECT" id="dimension" selected="true" />
<filter-element type="OBJECT" id="cluster" selected="true" />
<filter-element type="OBJECT" id="dblink" selected="true" />
</user-schema>
<public-schema>
<filter-element type="OBJECT" id="table" selected="true" />
<filter-element type="OBJECT" id="view" selected="true" />
<filter-element type="OBJECT" id="json view" selected="true" />
<filter-element type="OBJECT" id="materialized view" selected="true" />
<filter-element type="OBJECT" id="index" selected="true" />
<filter-element type="OBJECT" id="constraint" selected="true" />
<filter-element type="OBJECT" id="trigger" selected="true" />
<filter-element type="OBJECT" id="synonym" selected="true" />
<filter-element type="OBJECT" id="sequence" selected="true" />
<filter-element type="OBJECT" id="procedure" selected="true" />
<filter-element type="OBJECT" id="function" selected="true" />
<filter-element type="OBJECT" id="package" selected="true" />
<filter-element type="OBJECT" id="type" selected="true" />
<filter-element type="OBJECT" id="dimension" selected="true" />
<filter-element type="OBJECT" id="cluster" selected="true" />
<filter-element type="OBJECT" id="dblink" selected="true" />
</public-schema>
<any-schema>
<filter-element type="OBJECT" id="table" selected="true" />
<filter-element type="OBJECT" id="view" selected="true" />
<filter-element type="OBJECT" id="json view" selected="true" />
<filter-element type="OBJECT" id="materialized view" selected="true" />
<filter-element type="OBJECT" id="index" selected="true" />
<filter-element type="OBJECT" id="constraint" selected="true" />
<filter-element type="OBJECT" id="trigger" selected="true" />
<filter-element type="OBJECT" id="synonym" selected="true" />
<filter-element type="OBJECT" id="sequence" selected="true" />
<filter-element type="OBJECT" id="procedure" selected="true" />
<filter-element type="OBJECT" id="function" selected="true" />
<filter-element type="OBJECT" id="package" selected="true" />
<filter-element type="OBJECT" id="type" selected="true" />
<filter-element type="OBJECT" id="dimension" selected="true" />
<filter-element type="OBJECT" id="cluster" selected="true" />
<filter-element type="OBJECT" id="dblink" selected="true" />
</any-schema>
</extended-filter>
</filters>
<sorting enabled="true">
<sorting-element type="RESERVED_WORD" id="keyword" />
<sorting-element type="RESERVED_WORD" id="datatype" />
<sorting-element type="OBJECT" id="column" />
<sorting-element type="OBJECT" id="table" />
<sorting-element type="OBJECT" id="view" />
<sorting-element type="OBJECT" id="json view" />
<sorting-element type="OBJECT" id="materialized view" />
<sorting-element type="OBJECT" id="index" />
<sorting-element type="OBJECT" id="constraint" />
<sorting-element type="OBJECT" id="trigger" />
<sorting-element type="OBJECT" id="synonym" />
<sorting-element type="OBJECT" id="sequence" />
<sorting-element type="OBJECT" id="procedure" />
<sorting-element type="OBJECT" id="function" />
<sorting-element type="OBJECT" id="package" />
<sorting-element type="OBJECT" id="type" />
<sorting-element type="OBJECT" id="dimension" />
<sorting-element type="OBJECT" id="cluster" />
<sorting-element type="OBJECT" id="dblink" />
<sorting-element type="OBJECT" id="schema" />
<sorting-element type="OBJECT" id="role" />
<sorting-element type="OBJECT" id="user" />
<sorting-element type="RESERVED_WORD" id="function" />
<sorting-element type="RESERVED_WORD" id="parameter" />
</sorting>
<format>
<enforce-code-style-case value="true" />
</format>
</code-completion-settings>
<execution-engine-settings>
<statement-execution>
<fetch-block-size value="100" />
<execution-timeout value="20" />
<debug-execution-timeout value="600" />
<focus-result value="false" />
<prompt-execution value="false" />
</statement-execution>
<script-execution>
<command-line-interfaces />
<execution-timeout value="300" />
</script-execution>
<method-execution>
<execution-timeout value="30" />
<debug-execution-timeout value="600" />
<parameter-history-size value="10" />
</method-execution>
</execution-engine-settings>
<operation-settings>
<transactions>
<uncommitted-changes>
<on-project-close value="ASK" />
<on-disconnect value="ASK" />
<on-autocommit-toggle value="ASK" />
</uncommitted-changes>
<multiple-uncommitted-changes>
<on-commit value="ASK" />
<on-rollback value="ASK" />
</multiple-uncommitted-changes>
</transactions>
<session-browser>
<disconnect-session value="ASK" />
<kill-session value="ASK" />
<reload-on-filter-change value="false" />
</session-browser>
<compiler>
<compile-type value="KEEP" />
<compile-dependencies value="ASK" />
<always-show-controls value="false" />
</compiler>
</operation-settings>
<ddl-file-settings>
<extensions>
<mapping file-type-id="VIEW" extensions="vw" />
<mapping file-type-id="TRIGGER" extensions="trg" />
<mapping file-type-id="PROCEDURE" extensions="prc" />
<mapping file-type-id="FUNCTION" extensions="fnc" />
<mapping file-type-id="PACKAGE" extensions="pkg" />
<mapping file-type-id="PACKAGE_SPEC" extensions="pks" />
<mapping file-type-id="PACKAGE_BODY" extensions="pkb" />
<mapping file-type-id="TYPE" extensions="tpe" />
<mapping file-type-id="TYPE_SPEC" extensions="tps" />
<mapping file-type-id="TYPE_BODY" extensions="tpb" />
<mapping file-type-id="JAVA_SOURCE" extensions="sql" />
</extensions>
<general>
<lookup-ddl-files value="true" />
<create-ddl-files value="false" />
<synchronize-ddl-files value="true" />
<use-qualified-names value="false" />
<make-scripts-rerunnable value="true" />
</general>
</ddl-file-settings>
<assistant-settings>
<credential-settings>
<credentials />
</credential-settings>
</assistant-settings>
<general-settings>
<regional-settings>
<date-format value="MEDIUM" />
<number-format value="UNGROUPED" />
<locale value="SYSTEM_DEFAULT" />
<use-custom-formats value="false" />
</regional-settings>
<environment>
<environment-types>
<environment-type id="development" name="Development" description="Development environment" color="-2430209/-12296320" readonly-code="false" readonly-data="false" />
<environment-type id="integration" name="Integration" description="Integration environment" color="-2621494/-12163514" readonly-code="true" readonly-data="false" />
<environment-type id="production" name="Production" description="Productive environment" color="-11574/-10271420" readonly-code="true" readonly-data="true" />
<environment-type id="other" name="Other" description="" color="-1576/-10724543" readonly-code="false" readonly-data="false" />
</environment-types>
<visibility-settings>
<connection-tabs value="true" />
<dialog-headers value="true" />
<object-editor-tabs value="true" />
<script-editor-tabs value="false" />
<execution-result-tabs value="true" />
</visibility-settings>
</environment>
</general-settings>
</component>
</project>

7
.idea/encodings.xml generated Normal file
View File

@@ -0,0 +1,7 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="Encoding">
<file url="file://$PROJECT_DIR$/src/main/java" charset="UTF-8" />
<file url="file://$PROJECT_DIR$/src/main/resources" charset="UTF-8" />
</component>
</project>

14
.idea/misc.xml generated Normal file
View File

@@ -0,0 +1,14 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ExternalStorageConfigurationManager" enabled="true" />
<component name="MavenProjectsManager">
<option name="originalFiles">
<list>
<option value="$PROJECT_DIR$/pom.xml" />
</list>
</option>
</component>
<component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="17" project-jdk-type="JavaSDK">
<output url="file://$PROJECT_DIR$/out" />
</component>
</project>

6
.idea/vcs.xml generated Normal file
View File

@@ -0,0 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="VcsDirectoryMappings">
<mapping directory="$PROJECT_DIR$" vcs="Git" />
</component>
</project>

60
pom.xml Normal file
View File

@@ -0,0 +1,60 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>3.2.1</version>
<relativePath/>
</parent>
<groupId>org.example</groupId>
<artifactId>seckill</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<maven.compiler.source>17</maven.compiler.source>
<maven.compiler.target>17</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<!-- Web -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- Redis -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<!-- RocketMQ -->
<dependency>
<groupId>org.apache.rocketmq</groupId>
<artifactId>rocketmq-spring-boot-starter</artifactId>
<version>2.3.6</version>
</dependency>
<!-- Lombok -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

View File

@@ -0,0 +1,11 @@
package org.example;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class SecKillApplication {
public static void main(String[] args) {
SpringApplication.run(SecKillApplication.class, args);
}
}

View File

@@ -0,0 +1,62 @@
package org.example.controller;
import org.apache.rocketmq.spring.core.RocketMQTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import java.util.Map;
import java.util.concurrent.Semaphore;
import java.util.concurrent.TimeUnit;
@RestController
@RequestMapping("/seckill")
public class SeckillController {
@Autowired
private StringRedisTemplate redis;
@Autowired
private RocketMQTemplate rocketMQTemplate;
private final Semaphore semaphore = new Semaphore(100);
@PostMapping("/{userId}")
public ResponseEntity seckill(@PathVariable Integer userId) throws InterruptedException {
// 1. 限流
if (!semaphore.tryAcquire()) {
System.out.println("用户:" + userId + " 秒杀结果:系统繁忙");
return ResponseEntity.status(200).body("系统繁忙");
}
try {
// 2. 防刷
String userKey = "seckill:user:" + userId;
Boolean first = redis.opsForValue().setIfAbsent(userKey, "1", 60, TimeUnit.SECONDS);
if (Boolean.FALSE.equals(first)) {
// System.out.println("用户:" + userId + " 秒杀结果:请勿重复尝试");
return ResponseEntity.status(200).body("请勿重复尝试");
}
// 3. 扣库存
String stockKey = "seckill:stock:1";
Long remain = redis.opsForValue().decrement(stockKey);
if (remain == null || remain < 0) {
redis.opsForValue().increment(stockKey);
System.out.println("用户:" + userId + " 秒杀结果:已售罄");
return ResponseEntity.status(200).body("已售罄");
}
// 4. 发消息
rocketMQTemplate.convertAndSend("seckill-order", Map.of("userId", userId, "goodsId", 1));
System.out.println("用户:" + userId + " 秒杀结果:秒杀成功");
return ResponseEntity.status(200).body("秒杀成功");
} finally {
semaphore.release();
}
}
}

View File

@@ -0,0 +1,18 @@
package org.example.service;
import org.apache.rocketmq.spring.annotation.RocketMQMessageListener;
import org.apache.rocketmq.spring.core.RocketMQListener;
import org.springframework.stereotype.Component;
import java.util.Map;
@Component
@RocketMQMessageListener(topic = "seckill-order", consumerGroup = "seckill-consumer")
public class OrderConsumer implements RocketMQListener<Map> {
@Override
public void onMessage(Map msg) {
System.out.println("收到订单:" + msg);
// 后期写 DB
}
}

View File

@@ -0,0 +1,14 @@
server:
port: 8080
spring:
data:
redis:
host: 192.168.1.100
port: 6379
password: medical@2019
rocketmq:
name-server: 192.168.1.100:9876
producer:
group: seckill-producer-group