Spring Boot与Spring Cloud：构建企业级微服务实战指南

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import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.http.HttpMethod; import org.springframework.security.config.annotation.web.builders.HttpSecurity; import org.springframework.security.config.annotation.web.builders.WebSecurity; import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity; import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter; import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder; import org.springframework.security.crypto.password.PasswordEncoder; @Configuration @EnableWebSecurity public class SecurityConfig extends WebSecurityConfigurerAdapter { @Autowired private JwtTokenProvider jwtTokenProvider; @Override protected void configure(HttpSecurity http) throws Exception { http.csrf().disable().authorizeRequests() .antMatchers("/api/").authenticated() .and() .apply(new JwtConfigurer(jwtTokenProvider)); } @Override public void configure(WebSecurity web) throws Exception { web.ignoring().antMatchers(HttpMethod.OPTIONS, "/"); } @Bean public PasswordEncoder passwordEncoder() { return new BCryptPasswordEncoder(12); } } 这段代码中JwtConfigurer报错，帮我修改下

你需要在代码中定义 JwtConfigurer 类，或者使用 Spring Security 提供的 JwtConfigurer 类，具体代码如下： ```java import org.springframework.beans.factory.annotation.Autowired; import org.springframework...

Parameter 1 of method sessionRepositoryFilterRegistration in org.springframework.boot.autoconfigure.session.SessionRepositoryFilterConfiguration required a bean of type 'org.springframework.data.redis.connection.RedisConnectionFactory' that could not be found. Parameter 1 of method sessionRepositoryFilterRegistration in org.springframework.boot.autoconfigure.session.SessionRepositoryFilterConfiguration required a bean of type 'org.springframework.data.redis.connection.RedisConnectionFactory' that could not be foundParameter 1 of method sessionRepositoryFilterRegistration in org.springframework.boot.autoconfigure.session.SessionRepositoryFilterConfiguration required a bean of type 'org.springframework.data.redis.connection.RedisConnectionFactory' that could not be found.

spring.redis.host=your_redis_host spring.redis.port=your_redis_port ``` 3. 如果你已经按照以上步骤进行了配置，但仍然出现错误，请检查一下是否存在其他的配置文件或者代码片段覆盖了你的Redis配置。可能存在...

manning.spring.in.action.4th.edition

"Manning.Spring in Action.第四版" 是一本关于Spring框架的书籍。该书提供了深入的理解和使用Spring框架的知识。Spring是一个开源的Java应用框架，用于简化Java应用程序的开发。这本书的第四版，更加全面和详细地...

Description: Parameter 0 of constructor in org.yscz.aiks.websocket.WebSocketServer required a bean of type 'org.springframework.scheduling.TaskScheduler' that could not be found. Action: Consider defining a bean of type 'org.springframework.scheduling

Answer: To resolve this issue, you need to define a bean of type 'org.springframework.scheduling.TaskScheduler' in your configuration. The error message indicates that the WebSocketServer constructor ...

org.springframework.boot.web.reactive.error.ErrorWebExceptionHandler和org.springframework.web.server.WebExceptionHandler处理顺序

在 Spring Boot 2.x 中，如果同时存在基于 Servlet 的 Web 应用程序和基于 Reactive 的 Web 应用程序，那么它们的异常处理顺序是不同的。对于基于 Servlet 的 Web 应用程序，Spring Boot 2.x 会优先使用 `org....

cannot instantiate interface org.springframework.context.applicationlistener : org.springframework.boot.autoconfigure.backgroundpreinitializer

这个错误信息表明无法实例化接口org.springframework.context.applicationlistener，具体原因是org.springframework.boot.autoconfigure.backgroundpreinitializer类。可能是由于该类不是具体实现类导致无法实例化。...

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.jdbc.BadSqlGrammarException: ### Error querying database. Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Table 'library.admin' doesn't exist ### The error may exist in com/yx/dao/AdminMapper.xml ### The error may involve defaultParameterMap ### The error occurred while setting parameters ### SQL: select * from admin where username=? and password=? ### Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Table 'library.admin' doesn't exist ; bad SQL grammar []; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Table 'library.admin' doesn't exist org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1013) org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:908) javax.servlet.http.HttpServlet.service(HttpServlet.java:681) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882) javax.servlet.http.HttpServlet.service(HttpServlet.java:764) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

org.springframework.web.util.NestedServletException: 请求处理失败；嵌套异常是org.springframework.jdbc.BadSqlGrammarException： ### 查询数据库时出错。原因：...

解释一下下面这段error信息，说明一下可能的原因和解决方法org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'org.springframework.xml.xsd.commons.CommonsXsdSchemaCollection#74b3f968' defined in ServletContext resource [/WEB-INF/spring-ws-ota-servlet.xml]: Unsatisfied dependency expressed through constructor parameter 0: Could not convert argument value of type [org.springframework.ws.wsdl.wsdl11.DefaultWsdl11Definition] to required type [[Lorg.springframework.core.io.Resource;]: Failed to convert value of type 'org.springframework.ws.wsdl.wsdl11.DefaultWsdl11Definition' to required type 'org.springframework.core.io.Resource[]'; nested exception is java.lang.IllegalArgumentException: Cannot convert value of type 'org.springframework.ws.wsdl.wsdl11.DefaultWsdl11Definition' to required type 'org.springframework.core.io.Resource': PropertyEditor [org.springframework.core.io.ResourceEditor] returned inappropriate value of type 'org.springframework.ws.wsdl.wsdl11.DefaultWsdl11Definition'

这段错误信息表明在创建名为 'org.springframework.xml.xsd.commons.CommonsXsdSchemaCollection#74b3f968' 的 bean 时发生了依赖注入问题。该 bean 在 ServletContext 资源 [/WEB-INF/spring-ws-ota-servlet.xml] ...

Parameter 0 of method managementSecurityFilterChain in org.springframework.boot.actuate.autoconfigure.security.servlet.ManagementWebSecurityAutoConfiguration required a bean of type 'org.springframework.security.config.annotation.web.builders.HttpSecurity' that could not be found.

这个错误通常是由于缺少必要的Spring Security配置导致的。在Spring Boot Actuator中，有一个名为`managementSecurityFilterChain`的过滤器链需要一个类型为`HttpSecurity`的Bean来进行配置。要解决这个问题，你...

org.springframework.boot.autoconfigure.web.HttpMessageConverters与org.springframework.boot.autoconfigure.http.HttpMessageConverters的区别

`org.springframework.boot.autoconfigure.web.HttpMessageConverters`位于`spring-boot-autoconfigure`模块中，主要用于自动配置Spring Web MVC中的HttpMessageConverter列表，该类通过BeanFactory实例化并返回...

Consider defining a bean of type 'org.springframework.cloud.netflix.ribbon.RibbonLoadBalancerClient' in your configuration.

To define a bean of type 'org.springframework.cloud.netflix.ribbon.RibbonLoadBalancerClient' in your configuration, you can add the following code to your Spring Boot application: ```java import org....

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'delegatingApplicationListener' defined in class path resource [org/springframework/security/config/annotation/web/configuration/WebSecurityConfiguration.class]: Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration': Initialization of bean failed; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'org.springframework.context.annotation.ConfigurationClassPostProcessor.importRegistry' available

这个错误通常是由于Spring配置问题引起的。它表明在初始化`delegatingApplicationListener`bean时出现了问题，具体原因是`org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration` ...

Description: Field redisTemplate in com.example.mybatisplusspringboot.config.RedisLock required a bean of type 'org.springframework.data.redis.core.RedisTemplate' that could not be found. The injection point has the following annotations: - @org.springframework.beans.factory.annotation.Autowired(required=true) Action: Consider defining a bean of type 'org.springframework.data.redis.core.RedisTemplate' in your configuration.

这个错误提示是因为在 `com.example.mybatisplusspringboot.config.RedisLock` 类中，有一个类型为 `org.springframework.data.redis.core.RedisTemplate` 的成员变量 `redisTemplate`，但是 Spring 容器中找不到该...

Consider defining a bean of type 'org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory' in your configuration.

Sure, to define a bean of type 'org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory' in your Spring configuration, you can follow these steps: 1. Make sure you have the Spring ...

Consider defining a bean of type 'org.springframework.web.client.RestTemplate' in your configuration.

Sure, you can define a bean of type 'org.springframework.web.client.RestTemplate' in your configuration by adding the following code: ```java import org.springframework.context.annotation.Bean; ...

Description: Parameter 0 of method modifyRequestBodyGatewayFilterFactory in org.springframework.cloud.gateway.config.GatewayAutoConfiguration required a bean of type 'org.springframework.http.codec.ServerCodecConfigurer' that could not be found. Action: Consider defining a bean of type 'org.springframework.http.codec.ServerCodecConfigurer' in your configuration.

这个错误提示意味着在 `GatewayAutoConfiguration` 类中的 `modifyRequestBodyGatewayFilterFactory` 方法需要一个类型为 `org.springframework.http.codec.ServerCodecConfigurer` 的 bean，但是当前 Spring 容器中...

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Description: Parameter 0 of constructor in org.yscz.aiks.websocket.WebSocketServer required a bean of type 'org.springframework.scheduling.TaskScheduler' that could not be found. Action: Consider defining a bean of type 'org.springframework.scheduling

org.springframework.boot.web.reactive.error.ErrorWebExceptionHandler和org.springframework.web.server.WebExceptionHandler处理顺序

cannot instantiate interface org.springframework.context.applicationlistener : org.springframework.boot.autoconfigure.backgroundpreinitializer

Parameter 0 of method managementSecurityFilterChain in org.springframework.boot.actuate.autoconfigure.security.servlet.ManagementWebSecurityAutoConfiguration required a bean of type 'org.springframework.security.config.annotation.web.builders.HttpSecurity' that could not be found.

org.springframework.boot.autoconfigure.web.HttpMessageConverters与org.springframework.boot.autoconfigure.http.HttpMessageConverters的区别

Consider defining a bean of type 'org.springframework.cloud.netflix.ribbon.RibbonLoadBalancerClient' in your configuration.

Consider defining a bean of type 'org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory' in your configuration.

Consider defining a bean of type 'org.springframework.web.client.RestTemplate' in your configuration.

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