二创建springCloud_server项目注册到eureka服务中

╰+哭是因爲堅強的太久メ 2022-05-22 02:54 428阅读 0赞

1,创建springCloud\_server项目  
![这里写图片描述][70]

2,导入依赖

<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.shawemou.spring</groupId>
        <artifactId>springboot</artifactId>
        <version>1.0.0-SNAPSHOT</version>
        <packaging>war</packaging>
    
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>1.5.4.RELEASE</version>
        </parent>
    
        
        <dependencyManagement>
            <dependencies>
                <dependency>
                    <groupId>org.springframework.cloud</groupId>
                    <artifactId>spring-cloud-dependencies</artifactId>
                    <version>Dalston.SR3</version>
                    <type>pom</type>
                    <scope>import</scope>
                </dependency>
            </dependencies>
        </dependencyManagement>
    
    
        <dependencies>
            
            <dependency>
                <groupId>org.hibernate</groupId>
                <artifactId>hibernate-validator</artifactId>
            </dependency>
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
    
            
            <dependency>
                <groupId>com.squareup.okhttp3</groupId>
                <artifactId>okhttp</artifactId>
            </dependency>
    
            
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-eureka-server</artifactId>
                <exclusions>
                    <exclusion>
                        <groupId>com.fasterxml.jackson.dataformat</groupId>
                        <artifactId>jackson-dataformat-xml</artifactId>
                    </exclusion>
                </exclusions>
            </dependency>
    
            
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>jstl</artifactId>
            </dependency>
    
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-tomcat</artifactId>
                <scope>provided</scope>
            </dependency>
    
            
            <dependency>
                <groupId>org.apache.tomcat.embed</groupId>
                <artifactId>tomcat-embed-jasper</artifactId>
                <scope>provided</scope>
            </dependency>
    
            
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>javax.servlet-api</artifactId>
                <scope>provided</scope>
            </dependency>
        </dependencies>
    
        <build>
            <finalName>${project.artifactId}</finalName>
            <plugins>
                
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-resources-plugin</artifactId>
                    <configuration>
                        <encoding>UTF-8</encoding>
                    </configuration>
                </plugin>
                
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <configuration>
                        <source>1.8</source>
                        <target>1.8</target>
                        <encoding>UTF-8</encoding>
                    </configuration>
                </plugin>
            </plugins>
        </build>
    
    </project>

3,编写application.yml文件  
这里需要注意的是,在springboot中如果有跳转到jsp页面的话,springboot要改为web项目,并且jsp只能放在WEB-INF内部

server:
      port: 8083
    
    spring: 
      application:  
        name: springcloud_orderServer #指定自己提供服务的名字,用于client调用
                                        #这是一个错误示例,服务名字不能还有下划线_
      mvc:
        view:
          prefix: /WEB-INF/  # 配置视图文件所在位置； 
          suffix: .jsp  # 配置视图文件后缀名； 
    
    
    eureka:
      client:
        registerWithEureka: true #是否将自己注册到Eureka服务中，默认为true
        fetchRegistry: true #是否从Eureka中获取注册信息，默认为true
        serviceUrl: #Eureka客户端与Eureka服务端进行交互的地址
          defaultZone: http://shawemou:shawemou@127.0.0.1:6868/eureka/ #因为eureka使用了安全校验,所以要加用户和密码
      instance: 
        prefer-ip-address: true #将自己的ip地址注册到Eureka服务中

4,编写入口ServerSpringApplication

@EnableEurekaClient
    @SpringBootApplication
    public class ServerSpringApplication { 
        public static void main(String[] args) {
            SpringApplication.run(ServerSpringApplication.class, args);
        }
    
        @Bean
        public RestTemplate getRestTemplate() {
            return new RestTemplate(new OkHttp3ClientHttpRequestFactory());
        }
    
    }

5,这里提一下,里面用到了后台表单校验

User类

public class User { 
        @NotNull(message="名字不能为null")
        private String name;
        @NotNull(message="年龄不能为null")
        private Integer age;
    
        @Valid
        @NotNull
        private Cat cat;

Cat类

public class Cat { 
        @NotNull(message = "猫的名字 不能为null")
        private String name;
    
        @NotNull(message = "猫的年龄不能为null")
        private Integer age;

Controller

@GetMapping("insert2")
        public String insert(@Valid User user,BindingResult result,String i,HttpServletRequest request){
            System.out.println(user);
            ModelAndView mv = new ModelAndView("NewFile");
            if(result.hasErrors()){
                // 收集错误信息
                List<String> msgs = new ArrayList<>();
                for (ObjectError error : result.getAllErrors()) {
                    System.out.println(error.getDefaultMessage());
                    msgs.add(error.getDefaultMessage());
                }
                mv.addObject("msgs",msgs);
                request.setAttribute("msgs", msgs);
                // 参数有错，响应400
                return "NewFile";
            }
            return "NewFile";
        }

这样就将服务注册到eureka中了

[70]: /images/20220522/58caff46d056494db8f97d149598d708.png