Spring Boot: remove jsessionid from url

参考代码 ：Spring Boot: remove jsessionid from url

我的SpringBoot用2.0.*，答案中的第一二个方案亲测无效。

应该在继承了Configuration里面加入第三种方案所示的代码

@Configuration
//WebMvcConfigurerAdapter在2.0.*中已作废，有WebMvcConfigurer，WebMvcConfigurationSupport两种方案。
//public class WebSecurityConfig extends WebMvcConfigurerAdapter{
public class WebSecurityConfig implements WebMvcConfigurer {
//public class WebSecurityConfig extends WebMvcConfigurationSupport {
            @Bean
            public ServletContextInitializer servletContextInitializer() {
                return new ServletContextInitializer() {

                    @Override
                    public void onStartup(ServletContext servletContext) throws ServletException {
                       servletContext.setSessionTrackingModes(Collections.singleton(SessionTrackingMode.COOKIE));
                       SessionCookieConfig sessionCookieConfig=servletContext.getSessionCookieConfig();
                       sessionCookieConfig.setHttpOnly(true);
                    }
                };

        }

}

或者

@Configuration
//WebMvcConfigurerAdapter在2.0.*中已作废，有WebMvcConfigurer，WebMvcConfigurationSupport两种方案。
//public class WebSecurityConfig extends WebMvcConfigurerAdapter{
public class WebSecurityConfig implements WebMvcConfigurer {
//public class WebSecurityConfig extends WebMvcConfigurationSupport {

    @Bean
    public ServletContextInitializer servletContextInitializer() {
        return servletContext -> {
            servletContext.setSessionTrackingModes(Collections.singleton(SessionTrackingMode.COOKIE));
            SessionCookieConfig sessionCookieConfig=servletContext.getSessionCookieConfig();
            sessionCookieConfig.setHttpOnly(true);
        };

    }
}

可以看到该段代码实现了以下接口

package org.springframework.boot.web.servlet;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;

@FunctionalInterface
public interface ServletContextInitializer {
    void onStartup(ServletContext servletContext) throws ServletException;
}