请教一个读取修改 xml 文件的问题 - V2EX
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plko345
V2EX    Rust

请教一个读取修改 xml 文件的问题

  •  
  •   plko345 2022-01-19 22:54:53 +08:00 2163 次点击
    这是一个创建于 1360 天前的主题,其中的信息可能已经有所发展或是发生改变。

    我需要读取一个 xml 文件, 并打算修改其中的内容, 再将修改后的内容 http post 到一个服务上.

    使用的是 xml-rs

    fn generate_job_config_xml(git_remote_url: &str, job_config_xml_file_path: &str) -> Result<String, Box<dyn std::error::Error>> { let job_config_xml_file: File = fs::File::open(job_config_xml_file_path).unwrap(); let job_config_xml_file: BufReader<File> = BufReader::new(job_config_xml_file); let job_config_xml_parser: EventReader<BufReader<File>> = xml::reader::EventReader::new(job_config_xml_file); /* 之后我不知道该怎么处理这个变量, 修改其中的某个 `XmlEvent` 的值, 然后将修改后的内容转成字符串 */ for e in job_config_xml_parser { // println!("XmlEvent 值为: {:?}", e.unwrap()); match e { Ok(XmlEvent::Characters(t)) => { match t { "[email protected]:xx/xx.git".to_string() => { // 修改 job_config_xml_parser 变量中这个地方的值为 [email protected]:yy/yy.git } } } // 其它的不管 } } Ok("sth".to_string()) } 

    我应该怎么处理这个情况? 麻烦给个提示.

    现在我尝试使用其它的库, 比如 minidom, 不知道是否有自带的修改方法, 正在研究文档中.

    初学 rust, 请勿见笑

    1 条回复    2022-01-29 11:08:20 +08:00
    krcalc
        1
    krcalc  
       2022-01-29 11:08:20 +08:00   1
    同新手,是我的话可能会用 quick-xml 和 serde
    ```rust
    // serde = { version = "1.0", features = [ "derive" ] }
    // quick-xml = { version = "0.22", features = [ "serialize" ] }
    use std::fs;
    use serde::{Serialize,Deserialize};
    use quick_xml::de::from_str;
    use quick_xml::se::to_string;


    #[derive(Serialize,Deserialize)]
    #[serde(rename = "this_tag")]
    struct Thistag {
    k1: Option<String>,
    k2: Option<String>,
    child: String,
    atag: String
    }


    fn main() {
    //let s = fs::read_to_string("test.xml").unwrap();
    let s = r#"<this_tag k1="v1" k2="v2">
    <child>
    text
    </child>
    <atag>123123</atag>
    </this_tag>"#;
    let mut data: Thistag = from_str(&s).unwrap();
    data.atag = String::from("abc");
    let newxml =to_string(&data).unwrap();
    println!("{}",newxml);
    }
    ```
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