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简单springboot在aws上不起作用

  •  1
  • Davi Resio  · 技术社区  · 7 年前

    我用示例默认项目创建了一个elastistic Benstable,它工作正常,但在我上传了spring boot项目之后,它就不工作了,但在localhost上工作得很好。 为了更好地检查错误,我做了一个非常简单的spring引导项目,只使用web依赖项和一个简单的端点,但还不能工作

    pom。xml

    <?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>
    
        <groupId>com.example</groupId>
        <artifactId>demo</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <packaging>war</packaging>
    
        <name>demo</name>
        <description>Demo project for Spring Boot</description>
    
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>2.0.1.RELEASE</version>
            <relativePath/> <!-- lookup parent from repository -->
        </parent>
    
        <properties>
            <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
            <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
            <java.version>1.8</java.version>
        </properties>
    
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
            </dependency>
        </dependencies>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                </plugin>
            </plugins>
        </build>
    
    
    </project>
    

    我只创建这个类

    package com.example.demo.Testing;
    
    import org.springframework.http.HttpStatus;
    import org.springframework.http.ResponseEntity;
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    @RestController
    public class TestingAWS {
    
        @GetMapping()
        public ResponseEntity<?> sayOk(){
            return new ResponseEntity<>(HttpStatus.OK);
        }
    }
    

    和@springboot应用程序

    package com.example.demo;
    
    import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication;
    
    @SpringBootApplication public class DemoApplication {
    
        public static void main(String[] args) {
            SpringApplication.run(DemoApplication.class, args);
        } }
    

    我尝试在应用程序中没有配置的情况下运行。属性和具有:

    server.port=8080
    

    我使用

    mvn clean install
    

    以及之后 mvn spring-boot:run 要在本地主机上部署并正常工作,端点将返回状态200

    但我在控制台中给出了这个错误

    2018-04-18 16:30:55.468  INFO 19224 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
    2018-04-18 16:30:55.469  INFO 19224 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
    

    这个应用程序在aws上不起作用。错误日志:

    https://elasticbeanstalk-us-east-1-770207322946.s3.amazonaws.com/resources/environments/logs/tail/e-vnewtwgp2g/i-0f4edca74953a1e67/TailLogs-1524080692420.out?AWSAccessKeyId=AKIAIOUOORMVUTXOJUHQ&Expires=1524167093&Signature=RILCgkY%2B0pJqEgnHNooejNEa9NU%3D

    我放置了一个链接,因为它非常大,stackoverflow说我超出了字符限制

    但在健康状态下,说服务器正常

    enter image description here

    但如果尝试执行请求,则会出现以下错误:

    <html>
        <head>
            <title>502 Bad Gateway</title>
        </head>
        <body bgcolor="white">
            <center>
                <h1>502 Bad Gateway</h1>
            </center>
            <hr>
            <center>nginx/1.12.1</center>
        </body>
    </html>
    <!-- a padding to disable MSIE and Chrome friendly error page -->
    <!-- a padding to disable MSIE and Chrome friendly error page -->
    <!-- a padding to disable MSIE and Chrome friendly error page -->
    <!-- a padding to disable MSIE and Chrome friendly error page -->
    <!-- a padding to disable MSIE and Chrome friendly error page -->
    <!-- a padding to disable MSIE and Chrome friendly error page -->
    
    2 回复  |  直到 7 年前
        1
  •  0
  •   Dherik    7 年前

    这是:

    2018-04-18 16:30:55.468  INFO 19224 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
    2018-04-18 16:30:55.469  INFO 19224 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
    

    不是错误。这意味着Spring Boot正在向端点注册控制器 /error .是Spring Boot的默认行为,如前所述 here :

    如果您 不要在配置中指定任何自定义实现。

    您还可以看到日志级别为 INFO ERROR

    可能,Spring引导不是错误502坏网关的原因。导致此错误的原因有很多。我建议您创建另一个问题,重点是您的AWS设置。

        2
  •  0
  •   Caio Menezes    7 年前

    您是否创建了@SpringBootApplication?

    您是否试图更换?对于方法上的字符串,只是为了查看它是否正在生成问题?

    如果您只想返回HttpStatus,可能应该将方法更改为:

    public HttpStatus sayOk(){
       return HttpStatus.ok;
    }