Caused by: java.nio.charset.MalformedInputException: Input length = 1

java.lang.IllegalStateException: Failed to load property source from location 'classpath:/application.yml'

    at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.loadIntoGroup(ConfigFileApplicationListener.java:476)

    at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:465)

    at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:386)

    at org.springframework.boot.context.config.ConfigFileApplicationListener.addPropertySources(ConfigFileApplicationListener.java:225)

    at org.springframework.boot.context.config.ConfigFileApplicationListener.postProcessEnvironment(ConfigFileApplicationListener.java:195)

    at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEnvironmentPreparedEvent(ConfigFileApplicationListener.java:182)

    at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEvent(ConfigFileApplicationListener.java:168)

    at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)

    at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)

    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)

    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:122)

    at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:74)

    at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:54)

    at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:325)

    at org.springframework.boot.SpringApplication.run(SpringApplication.java:296)

    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118)

    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107)

    at com.chinanums.schoolspayment.SchoolspaymentApplication.main(SchoolspaymentApplication.java:10)

    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

    at java.lang.reflect.Method.invoke(Method.java:498)

    at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49)

Caused by: org.yaml.snakeyaml.error.YAMLException: java.nio.charset.MalformedInputException: Input length = 1

    at org.yaml.snakeyaml.reader.StreamReader.update(StreamReader.java:254)

    at org.yaml.snakeyaml.reader.StreamReader.<init>(StreamReader.java:58)

    at org.yaml.snakeyaml.Yaml.loadAll(Yaml.java:518)

    at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:157)

    at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:135)

    at org.springframework.boot.env.YamlPropertySourceLoader$Processor.process(YamlPropertySourceLoader.java:101)

    at org.springframework.boot.env.YamlPropertySourceLoader.load(YamlPropertySourceLoader.java:58)

    at org.springframework.boot.env.PropertySourcesLoader.load(PropertySourcesLoader.java:128)

    at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.doLoadIntoGroup(ConfigFileApplicationListener.java:490)

    at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.loadIntoGroup(ConfigFileApplicationListener.java:473)

    ... 22 common frames omitted

Caused by: java.nio.charset.MalformedInputException: Input length = 1

    at java.nio.charset.CoderResult.throwException(CoderResult.java:281)

    at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:339)

    at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:178)

    at java.io.InputStreamReader.read(InputStreamReader.java:184)

    at org.yaml.snakeyaml.reader.UnicodeReader.read(UnicodeReader.java:125)

    at org.yaml.snakeyaml.reader.StreamReader.update(StreamReader.java:223)

    ... 31 common frames omitted

第一种可能是你的application.yml文件编码格式有问题，改为UTF-8，如下：

第二种:

可能就是你的application.yml文件是通过把其他类型的文件后缀名直接改为yml生成的，这时就需要你把application.yml中的内容全部复制，然后删除，再新建一个application.yml文件，

将复制的内容拷贝进去再运行项目就不会报错了。

Caused by: java.nio.charset.MalformedInputException: Input length = 1的相关教程结束。