JsonParseException: Unexpected character ('<' (code 60)): expected a valid value (JSON


Sts启用了地址:https://start.aliyun.com/

报这个错误,是因为没有获取到相关的版本信息,之前我用的是spring boot 2.2.1.RELEASE
改为2.5.6就可以了。

"http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    4.0.0
    
        org.springframework.boot
        spring-boot-starter-parent
        2.5.6
         
    
    com.test
    SpringSecurityDemo1
    0.0.1-SNAPSHOT

    
        
            org.springframework.boot
            spring-boot-starter-test
            test
        
    

这样就出现了Spring菜单-- Add Starters

 增加依赖:

点击next,然后勾选pom.xml,点击finishi按钮,系统会自动加入依赖。

增加依赖后pom.xml变成了:

"http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    4.0.0
    
        org.springframework.boot
        spring-boot-starter-parent
        2.5.6
         
    
    com.test
    SpringSecurityDemo1
    0.0.1-SNAPSHOT

    
        
            org.springframework.boot
            spring-boot-starter-test
            test
        
        
            org.springframework.boot
            spring-boot-starter-security
        
        
            org.springframework.boot
            spring-boot-starter-web
        
        
            mysql
            mysql-connector-java
            runtime
        
        
            org.springframework.security
            spring-security-test
            test
        
        
            org.springframework.boot
            spring-boot-starter
        
        
            org.springframework.boot
            spring-boot-devtools
            runtime
            true
        
    
    
        1.8
        UTF-8
        UTF-8
        2.5.6
    
    
        
            
                org.springframework.boot
                spring-boot-dependencies
                ${spring-boot.version}
                pom
                import
            
        
    
    
        
            
                org.apache.maven.plugins
                maven-compiler-plugin
                3.8.1
                
                    1.8
                    1.8
                    UTF-8
                
            
            
                org.springframework.boot
                spring-boot-maven-plugin
                2.5.6
                
                    com.test.SpringSecurityDemo1.SpringSecurityDemo1Application
                
                
                    
                        repackage
                        
                            repackage
                        
                    
                
            
        
    

 也可以用向导:

这样就可以直接加入依赖了。