我正在尝试使用Nickel模板返回JSON文件。我发现了一些返回JSON响应并修改它的API示例代码:
myErrorView = [[ErrorView alloc]initWithdelegate:self ForView:self.view];
extern crate rustc_serialize;
#[macro_use]
extern crate nickel;
use nickel::{Nickel, HttpRouter, JsonBody};
use nickel::mimes::MediaType;
use nickel::status::*;
use rustc_serialize::json;
use std::collections::HashMap;
#[derive(RustcDecodable, RustcEncodable)]
struct Person {
firstname: String,
lastname: String,
}
fn main() {
let mut server = Nickel::new();
server.get("/post", middleware! { |request, mut response|
let person: Person = Person { firstname: "firstName ".to_string(), lastname: "lastName".to_string()};
let mut p: Vec<Person> = vec![];
p.push(person);
let json_data = json::encode(&p).unwrap();
let mut data_result = "{\"status\": 200, \"data\":".to_owned();
data_result.push_str(&json_data.to_string());
data_result.push_str("}");
response.set(StatusCode::Ok);
response.set(MediaType::Json);
format!("{}", data_result)
});
server.get("/json", middleware! { |_, response|
let mut data = HashMap::new();
data.insert("name", "user");
return response.render("app/views/temp.tpl", &data);
// template source
//
//{name: {{name}}}
//
});
server.listen("127.0.0.1:6767");
}
返回此JSON:
/post
{ "status": 200, "data": [{ "firstname": "firstName ", "lastname": "lastName" ]}
会返回此文字:
/json
如何使用模板返回JSON文件?
答案 0 :(得分:0)
它实际上会返回
{name: user}
您需要做的只是在其他处理程序中添加已经拥有的response.set(MediaType::Json);
:
#[macro_use]
extern crate nickel;
use nickel::{Nickel, HttpRouter};
use nickel::mimes::MediaType;
use std::collections::HashMap;
fn main() {
let mut server = Nickel::new();
server.get("/json", middleware! { |_, mut response| {
let mut data = HashMap::new();
data.insert("name", "user");
response.set(MediaType::Json);
return response.render("app/views/temp.tpl", &data);
}});
server.listen("127.0.0.1:6767");
}
现在,这可能不是一个好的想法。通过字符串连接创建结构化格式(CSV,JSON,XML等)通常会出现格式错误的文档或不正确的数据转发问题。