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springboot连接 MYSQL数据库出问题

2

1

springboot

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

Spring:
  datebase:
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql://localhost:3306/spring-cloud?useUnicode=true&characterEncoding=utf8&characterSetResults=utf8
    username: root
    password: 123456

  jpa:
    hibernate:
      ddl-auto: create  # 第一次简表create  后面用update
    show-sql: true

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微信登录

1

第三方接口调用

class="cursor-pointer"> 详细描述

该问题已被官方收录

generator

1

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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lombok包 @data 注释没有生产get/set 方法

1

springboot

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

<dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.16.10</version>
        </dependency>

@Data
@Entity
public class SysRole {
    @Id@GeneratedValue
    private Integer id; // 编号
    private String role; // 角色标识程序中判断使用,如"admin",这个是唯一的:
    private String description; // 角色描述,UI界面显示使用
    private Boolean available = Boolean.FALSE; // 是否可用,如果不可用将不会添加给用户

//角色 -- 权限关系：多对多关系;
    @ManyToMany(fetch= FetchType.EAGER)
    @JoinTable(name="SysRolePermission",joinColumns={@JoinColumn(name="roleId")},inverseJoinColumns={@JoinColumn(name="permissionId")})
    private List<SysPermission> permissions;

// 用户 - 角色关系定义;
    @ManyToMany
    @JoinTable(name="SysUserRole",joinColumns={@JoinColumn(name="roleId")},inverseJoinColumns={@JoinColumn(name="uid")})
    private List<UserInfo> userInfos;// 一个角色对应多个用户

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复盘生成代码使用@PathVariable访问无反应

1

复盘踩坑

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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spingboot JPA 多条件查询问题

0

1

springboot

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

public List<UserParams> findAllParams(UserParams userParams) {
        Integer ageParams = userParams.getAge();
        String nameParams = userParams.getUserName();
        String addressParams = userParams.getAddress();
        List <UserParams> result =userRepository.findAll(new Specification <UserParams>() {
            @Override
            public Predicate toPredicate(Root<UserParams> root,
                                         CriteriaQuery<?> criteriaQuery, CriteriaBuilder criteriaBuilder) {
               List<Predicate> predicateList = new ArrayList <Predicate>();
//
               if (StringUtils.isNoneBlank(nameParams)){
                   predicateList.add(criteriaBuilder.equal(root.get("userName"),nameParams));
               }
               if (ageParams != null ){
                   predicateList.add(criteriaBuilder.equal(root.get("age").as(Integer.class)),addressParams);
               }
               if (StringUtils.isNoneBlank(addressParams)){
                   predicateList.add(criteriaBuilder.equal(root.get("address"),addressParams));
               }
               criteriaQuery.where(predicateList.toArray(new Predicate[predicateList.size()]));
               return null;
            }
        });
        return result;
    }

pom
 <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>

        <!--阿里巴巴数据库连接池，专为监控而生 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.9</version>
        </dependency>
        <!-- 阿里巴巴fastjson，解析json视图 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.15</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
            <!--<scope>provided</scope>-->
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <!--queryDSL-->
        <!--<dependency>-->
            <!--<groupId>com.querydsl</groupId>-->
            <!--<artifactId>querydsl-jpa</artifactId>-->
            <!--<version>${querydsl.version}</version>-->
        <!--</dependency>-->
        <!--<dependency>-->
            <!--<groupId>com.querydsl</groupId>-->
            <!--<artifactId>querydsl-apt</artifactId>-->
            <!--<version>${querydsl.version}</version>-->
            <!--<scope>provided</scope>-->
        <!--</dependency>-->

        <!--<dependency>-->
            <!--<groupId>javax.inject</groupId>-->
            <!--<artifactId>javax.inject</artifactId>-->
            <!--<version>1</version>-->
        <!--</dependency>-->

        <!-- 通用工具类 Apache Commons-lang3 -->
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.7</version>
        </dependency>

        <!--hibernate JPA 自动生成元模型-->
        <!-- 相关依赖 -->
        <!--<dependency>-->
            <!--<groupId>org.hibernate</groupId>-->
            <!--<artifactId>hibernate-jpamodelgen</artifactId>-->
            <!--<version>5.2.10.Final</version>-->
            <!--<scope>compile</scope>-->
        <!--</dependency>-->
        <!--<dependency>-->
            <!--<groupId>org.hibernate</groupId>-->
            <!--<artifactId>hibernate-validator</artifactId>-->
            <!--<version>5.1.0.Final</version>-->
        <!--</dependency>-->


    </dependencies>

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maven多模块启动报错

1

springboot

class="cursor-pointer"> 详细描述

我把那个manager-service项目启动，用的是maven插件启动，然后把taotao-web项目启动，就在我启动web项目时，报了一个
SEVERE: StandardWrapper.Throwable
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'itemController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.taotao.service.ItemService com.taotao.controller.ItemController.itemService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.taotao.service.ItemService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1214)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:772)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:839)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538)
at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:668)
at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:634)
at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:682)
at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:553)
at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:494)
at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
at javax.servlet.GenericServlet.init(GenericServlet.java:160)
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1280)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1193)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1088)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5176)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5460)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:722)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.taotao.service.ItemService com.taotao.controller.ItemController.itemService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.taotao.service.ItemService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:573)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331)
... 30 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.taotao.service.ItemService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1373)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1119)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1014)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:545)
... 32 more

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使用shiro自定义Realm报错

0

1

shiro

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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通过GitHub发送POST请求到SpringCloud，但是返回415错误

1

springcloud

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

Request URL: http://193.112.201.68:8081/actuator/bus-refresh
Request method: POST
content-type: application/x-www-form-urlencoded
Expect: 
User-Agent: GitHub-Hookshot/50bbc82
X-GitHub-Delivery: 4d3a5a56-b631-11e8-8f48-85d08d2eaf0f
X-GitHub-Event: push

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参数校验框架：配置MVC时参数错误

1

参数校验

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图