报错内容采集

1.关于redis报错

报错内容：Property ‘spring.redis.host’ is Deprecated: Use ‘spring.data.redis.host’ instead.”、“Property ‘spring.redis.password’ is Deprecated: Use ‘spring.data.redis.password’ instead.

把“spring.redis”替换成“spring.data.redis”即可。

在application.yml文件里

javascript">spring.data.redis.host=127.0.0.1
spring.data.redis.port=6379

在application.yml文件里

javascript"> web:resources:add-mappings: falsedata:redis:host: 127.0.0.1port: 6379

javascript">datasource:// druid:  去除druidurl: jdbc:mysql://127.0.0.1:3306/supervision_dev?useUnicode=true&characterEncoding=UTF-8&useSSL=false&autoReconnect=true&failOverReadOnly=false&serverTimezone=GMT%2B8&allowMultiQueries=trueusername: rootpassword: admin

2.关于servlet报错

报错内容：The import javax.servlet cannot be resolved

把javax.servlet 替换为 jakarta.servlet

如：

javascript">import jakarta.servlet.ReadListener;
import jakarta.servlet.ServletInputStream;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletRequestWrapper;

2.关于Spring Security报错

报错内容：找不到类org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter

几乎是大家都会用去的WebSecurityConfigurerAdapter被删除了，原先继承这个的类现在无需继承任何类，只需要带上@Configuration注解。
原本配置WebSecurity和HttpSecurity的configure方法变为普通的@Bean方法，分别返回WebSecurityCustomizer和SecurityFilterChain。
原先的方法authorizeRequests变为authorizeHttpRequests、方法antMatchers变为requestMatchers。

修改自Spring Security官方博客的例子：

以前的写法

javascript">@Configuration
public class SecurityConfiguration extends WebSecurityConfigurerAdapter {@Overridepublic void configure(WebSecurity web) {web.ignoring().antMatchers("/ignore1", "/ignore2");}@Overrideprotected void configure(HttpSecurity http) throws Exception {http.authorizeRequests().anyRequest().authenticated().and().httpBasic(withDefaults());}
}

现在的写法

javascript">@Configuration
// 不再继承于WebSecurityConfigurerAdapter
public class SecurityConfiguration {@Beanpublic WebSecurityCustomizer webSecurityCustomizer() {// WebSecurityCustomizer是一个类似于Consumer<WebSecurity>的接口，函数接受一个WebSecurity类型的变量，无返回值// 此处使用lambda实现WebSecurityCustomizer接口，web变量的类型WebSecurity，箭头后面可以对其进行操作// 使用requestMatchers()代替antMatchers()return (web) -> web.ignoring().requestMatchers("/ignore1", "/ignore2");}@Beanpublic SecurityFilterChain filterChain(HttpSecurity http) throws Exception {http//使用authorizeHttpRequests()代替authorizeRequests().authorizeHttpRequests((authz) -> authz//这种写法被称为Lambda DSL，代替原来的and()链式操作.anyRequest().authenticated()).httpBasic(withDefaults());// 需要进行build()，返回SecurityFilterChainreturn http.build();}
}