/**
* 返回泛型数据，自定义类型
*/
private T content;

public T getContent() {
    return content;
}

public void setContent(T content) {
    this.content = content;
}

@Override
public String toString() {
    final StringBuffer sb = new StringBuffer("ResponseDto{");
    sb.append("success=").append(success);
    sb.append(", message='").append(message).append('\'');
    sb.append(", content=").append(content);
    sb.append('}');
    return sb.toString();
}

这里的T类型和用Object来替代有什么区别,用Object的话就不用写泛型了吧
toString这里用到的是StringBuffer和下面这种书写相比优势体现在哪里
@Override
public String toString() {
return “CommonResp{” +
“success=” + success +
", message=’" + message + ‘’’ +
", content=" + content +
’}’;
}