我使用gson从api解析json响应。但当我试图得到的内容是空的。
我的序列化类：

class Weather {
@SerializedName("id")
@Expose
private Integer id;
@SerializedName("main")
@Expose
private String main;
@SerializedName("description")
@Expose
private String description;
@SerializedName("icon")
@Expose
private String icon;

public Integer getId() {
    return id;
}

public void setId(Integer id) {
    this.id = id;
}

public String getMain() {
    return main;
}

public void setMain(String main) {
    this.main = main;
}

public String getDescription() {
    return description;
}

public void setDescription(String description) {
    this.description = description;
}

public String getIcon() {
    return icon;
}

public void setIcon(String icon) {
    this.icon = icon;
}

}
我的电话：

Gson gson = new GsonBuilder().create();
        Weather weather = gson.fromJson("{\"weather\":[{\"id\":800,\"main\":\"Clear\",\"description\":\"clear sky\",\"icon\":\"01n\"}]}", Weather.class);
        Log.i("[Weather]", "Weather: " + weather.getDescription());

说明和其他字段都是空的我不明白为什么？