How to solve the problem that username and password are required to log in to the web page after enabling springboot security

Question

Note: I use Spring Boot 2.0.2, which may not be useful for the 1.5.x series.

Direct solution

0, remove spring-boot-starter-security dependency

If you do not actually use the security function, you can directly remove spring-boot-starter -security depends on

1, use the default user and password to log in

The default user name is user
The password is a string automatically generated when the program starts

2, disable security settings or set the corresponding user and password

You can configure the corresponding user and password in application.properteis

You can also set the corresponding user Name and password
spring.security.user.name=user1
spring.security.user.password=password1

By disabling

package com.yq;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication(scanBasePackages = {"com.yq"})
@EnableAutoConfiguration(exclude = {
org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration.class
})
public class WebSecurityDemoApp {
    private static final Logger log = LoggerFactory.getLogger(WebSecurityDemoApp.class);

    public static void main(String[] args) {
        SpringApplication.run(WebSecurityDemoApp.class, args);
    }

}

parsing

As long as our Spring Boot project references the following dependencies, the security configuration will be enabled by default.

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-security</artifactId>
    </dependency>

If you want to use security but don’t want to enter the user name and password every time, you can disable automatic configuration directly in the Application file

@EnableAutoConfiguration(exclude = {
org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration.class
})

Or we can also configure the specified user and password, for example
spring.security.user.name=user1
spring.security.user.password=password1

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