我是一个java泛型的初学者，我尝试在类中使用泛型来解析我的user.yaml文件。当我尝试解析yaml文件时，我得到 * 类型变量'T'无法解析 * 不确定我哪里出错了。
最初这只是一个普通的类，然后我实现了泛型。

my yaml file

user:
    name: Test User
    age: 30

public interface IUser {
    String getName();
    IUser  setName(String name);

    Integer getAge();
    IUser setAge(Integer age);
}

public class User implements IUser{

    @JsonProperty("name")
    private String name;
    @JsonProperty("age")
    private Integer age;
    @JsonIgnore
    private Map<String, Object> additionalProperties = new HashMap<String, Object>();

    @JsonProperty("name")
    public String getName() {
        return name;
    }

    @JsonProperty("name")
    public User setName(String name) {
        this.name = name;
        return this;
    }

    @JsonProperty("age")
    public Integer getAge() {
        return age;
    }

    @JsonProperty("age")
    public User setAge(Integer age) {
        this.age = age;
        return this;
    }

    @JsonAnyGetter
    public Map<String, Object> getAdditionalProperties() {
        return this.additionalProperties;
    }

    @JsonAnySetter
    public void setAdditionalProperty(String name, Object value) {
        this.additionalProperties.put(name, value);
    }

    @Override
    public String toString() {
        return new ToStringBuilder(this).append("name", name).append("age", age).append("additionalProperties", additionalProperties).toString();
    }

    @Override
    public int hashCode() {
        return new HashCodeBuilder().append(additionalProperties).append(age).append(name).toHashCode();
    }

    @Override
    public boolean equals(Object other) {
        if (other == this) {
            return true;
        }
        if ((other instanceof User) == false) {
            return false;
        }
        User rhs = ((User) other);
        return new EqualsBuilder().append(additionalProperties, rhs.additionalProperties).append(age, rhs.age).append(name, rhs.name).isEquals();
    }
}

public interface IExample {
    <T extends IUser> T getUser();
    <T extends IUser> void setUser(T user);
}

public class Example implements IExample{

    @JsonProperty("user")
    private User user;
    @JsonIgnore
    private Map<String, Object> additionalProperties = new HashMap<String, Object>();

    @JsonProperty("user")
    public <T extends IUser> T getUser() {
        return (T) user;
    }

    @JsonProperty("user")
    public <T extends IUser> void setUser(T t) {
        this.user = (User)t;
    }

    @JsonAnyGetter
    public Map<String, Object> getAdditionalProperties() {
        return this.additionalProperties;
    }

    @JsonAnySetter
    public void setAdditionalProperty(String name, Object value) {
        this.additionalProperties.put(name, value);
    }

    @Override
    public String toString() {
        return new ToStringBuilder(this).append("user", user).append("additionalProperties", additionalProperties).toString();
    }

    @Override
    public int hashCode() {
        return new HashCodeBuilder().append(additionalProperties).append(user).toHashCode();
    }

    @Override
    public boolean equals(Object other) {
        if (other == this) {
            return true;
        }
        if ((other instanceof Example) == false) {
            return false;
        }
        Example rhs = ((Example) other);
        return new EqualsBuilder().append(additionalProperties, rhs.additionalProperties).append(user, rhs.user).isEquals();
    }
}

my main class where i'm trying to parse yaml object

public class ReadYaml {

    public void parse(){
        String path = "path/to/user.yaml";
        ObjectMapper mapper = new ObjectMapper(new YAMLFactory());

        try {
             IExample example = mapper.readValue(new File(path), Example.class);
             System.out.println(example.getUser().getName());
        } catch (IOException e) {
            e.printStackTrace();
        }

    }

    public static void main(String[] args){
      new ReadYaml().parse();
    }
}

我希望输出为：* 测试用户 ，但实际输出为 * com. fasterxml. jackson. databind. JsonMappingException：无法解析类型变量'T'（具有类com.yaml.Example的上下文）

更新

updated yaml file

user:
    name: Test User
    age: 30
address:
    line1: bangalore
    line2: karnataka

public interface IAddress {

    String getLine1();
    IAddress setLine1(String line1);

    String getLine2();
    IAddress setLine2(String line2);
}

public class Address implements IAddress {
    // code getters and setters
}

public interface IExample<T, U extends IUser & IAddress> {
    T getUser();
    void setUser(T user);

    U getAddress();
    void setAddress(U address);
}

public class Example<T, U extends IUser & IAddress> implements IExample<T, U>{

now i'm trying to parse yaml file.
public class ReadYaml {
.
.
.

TypeReference<Example<User, Address> typeReference = new TypeReference<Example<User, Address>() {
            };
IExample example = mapper.readValue(new File(path), typeReference);
System.out.println(example.getAddress.getLine1());

TypeReference<Example<User, Address> typeReference声明中出现错误：类型参数"Address"不在其界限内，应实现"IUser"