Spring Boot-从Application.Properties填充列表/集合？

Question

public class SomeClass {
    @Value("${hermes.api.excluded.jwt}")
    private List<String> excludePatterns = new ArrayList<>();
    // getters/settings ....
}

// Is something along these lines possible????
hermes.api.excluded.jwt[0]=/api/auth/
hermes.api.excluded.jwt[1]=/api/ss/

Answer 1

结果它确实起作用了。但是，您似乎必须使用配置属性，因为简单的@value（“${prop}”）似乎使用了不同的路径。（本节中有一些关于数据绑定程序的提示。不确定是否相关。）

application.properties

foo.bar[0]="a"
foo.bar[1]="b"
foo.bar[2]="c"
foo.bar[3]="d"

和代码中

@Component
@ConfigurationProperties(prefix="foo")
public static class Config {
    private final List<String> bar = new ArrayList<String>();
    public List<String> getBar() {
        return bar;
    }
}

@Component
public static class Test1 {
    @Autowired public Test1(Config config) {
        System.out.println("######## @ConfigProps " + config.bar);
    }
}

######## @ConfigProps ["a", "b", "c", "d"]

@Component
public static class Test2 {
    @Autowired public Test2(@Value("${foo.bar}") List<String> bar) {
        System.out.println("######## @Value " + bar);
    }
}

java.lang.IllegalArgumentException: Could not resolve placeholder 'foo.bar' in string value "${foo.bar}"
    at org.springframework.util.PropertyPlaceholderHelper.parseStringValue(...
    ...