Spring Cloud 配置中心中文乱码问题解决

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Spring Cloud 配置中心中文乱码问题解决

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参考文章：https://blog.csdn.net/fan521dan/article/details/105084260
pom配置：org.springframework.boot spring-boot-starter-parent 2.3.3.RELEASE

<properties>
    <java.version>1.8</java.version>
    <spring-cloud.version>Hoxton.SR8</spring-cloud.version>
</properties>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-config-server</artifactId>
    </dependency>

乱码原因：spring 默认使用 org.springframework.boot.env.PropertiesPropertySourceLoader 来加载配置，底层是通过调用 Properties 的 load 方法，而load方法输入流的编码是 ISO 8859-1 ，所以会出现中文乱码问题
解决路劲：

• 解决步骤:
  1.自定义属性源加载器，实现 PropertySourceLoader 接口
  2.在 resources 文件夹下，创建 META-INF 文件夹，再创建 spring.factories 文件
  3.application.properties中增加配置

一、自定义属性源加载器：

public class CustomPropertySourceLoader implements PropertySourceLoader {

	    private static final Logger logger = LoggerFactory.getLogger(CustomPropertySourceLoader.class);
	    @Override
	    public String[] getFileExtensions() {
	        return new String[]{"properties", "xml"};
	    }
	
	    @Override
	    public List<PropertySource<?>> load(String name, Resource resource) throws IOException {
	        Map<String, ?> properties = loadProperties(resource);
	        if (properties.isEmpty()) {
	            return Collections.emptyList();
	        }
	        return Collections
	                .singletonList(new OriginTrackedMapPropertySource(name, properties));
	    }
	
	    private Map<String, ?> loadProperties(Resource resource) {
	        Properties properties = new Properties();
	        try (InputStream inputStream = resource.getInputStream();){
	            properties.load(new InputStreamReader(inputStream, StandardCharsets.UTF_8));
	            inputStream.close();
	        } catch (IOException e) {
	            logger.error("load inputstream failure...", e);
	        }
	        return (Map) properties;
	    }
}

二、 spring.factories 中指定属性源加载器：

org.springframework.boot.env.PropertySourceLoader=com.example.configserver.CustomPropertySourceLoader

三、application.properties中增加配置

server.servlet.encoding.charset=UTF-8
server.servlet.encoding.force=true
server.servlet.encoding.enabled=true
server.tomcat.uri-encoding=UTF-8