subject-two/entry/src/main/ets/common/utils/request.ts

import http from '@ohos.net.http';
import convertxml from '@ohos.convertxml';
import prompt from '@ohos.prompt'
import { sendGreen } from '../../pages/judgeSDK/utils/judge-common';

const config = {
    host: 'http://112.80.35.83:11052',
    // host: 'http://192.168.36.2:8083',
}

let httpRequest = http.createHttp();

/**
 * @author: Renjun Su
 * @date: 2023/2/20
 * @desc 接口请求封装
 * @param {method}
 * @param {xml} xml请求的数据 xml是字符串
 * @param {data} post请求的数据
 * @param {params} get请求的数据
 *
 */

export default async function request(req: any) {
    const {url,params = {},data = {},xml,method = 'get',host} = req;
    const options = {
        method: http.RequestMethod[method.toUpperCase()],
        header: {
            'Content-Type': xml ? 'text/xml' : 'application/json'
        },
        extraData: xml?data:JSON.stringify(data)
    }
    //params转url拼接参数
    let paramsStr  = Reflect.ownKeys(params).reduce((p: string, n: string) => (`${p}${n}=${params[n]}&`), '?') || '';

    paramsStr = paramsStr.toString();
    paramsStr = paramsStr.substring(0, paramsStr.length-1)
    try {
        let baseUrl=host?host:config.host
        // let baseUrl=host?config.csptHost:config.host'
        console.info('surenjun',baseUrl)
        const {result,responseCode} = await httpRequest.request(`${baseUrl}${url}${paramsStr}`, options);

        let res:any = xml ? xmlToJson(result) : result;

        console.log('响应头地址' + JSON.stringify(res))
        let resObj = null;
        if(typeof res === "string"){
            res=JSON.parse(res)
        }

        //处理中心服务code
        if(res.Envelope){
            const msgXml = res.Envelope.Body.writeObjectOutResponse.return;
            return  handleCenterCode(msgXml);
        }

        if(!xml){
            if(res.head.resultCode === '0'){
                return res
            }else{
                const resultMessage = res?.body?.resultMessage || res?.head?.resultMessage
                prompt.showToast({
                    message: decodeURIComponent(resultMessage),
                    duration: 3000
                });
                return
            }
        }
        for( let i in res ) {
            resObj = res[i].head
        }
        console.info('jiangsong:res in request' + url + JSON.stringify(res))
        if(resObj.resultCode === '0') {
            return res
        }else {
            prompt.showToast({
                message: decodeURIComponent(resObj.resultMessage),
                duration: 3000
            });
        }
    } catch (e) {
        const code = e.code;
        prompt.showToast({
            message: e?.message,
            duration: 5000
        });
        switch (code){
        //断网
            case 2300007: return 2300007
            default:
        }
        return false
        console.info('test-error' + url  + ' error:resp: '+ JSON.stringify(e))
        httpRequest.destroy();
    }

}

//xml格式转JSON
function xmlToJson(result) {
    console.log("xmlToJson begin");
    let xmlOptions = {trim : false, declarationKey:"_declaration",
        instructionKey : "_instruction", attributesKey : "_attributes",
        textKey : "_text", cdataKey:"_cdata", doctypeKey : "_doctype",
        commentKey : "_comment", parentKey : "_parent", typeKey : "_type",
        nameKey : "_name", elementsKey : "_elements", "skipPreprocess" : true}

    let strXml = result.toString();
    let conv = new convertxml.ConvertXML();

    console.log("xmlToJson result.length = " + result.length);
    console.log("xmlToJson result content = " + result);
    // @ts-ignore
    let {_elements:xmlArr} = conv.convertToJSObject(strXml, xmlOptions);
    console.log("xmlToJson deeml begin");
    let res = deeml(xmlArr);
    console.log("xmlToJson end");
    return res
}

//处理中心服务code
function handleCenterCode(msgXml){
    //正则匹配code message字段
    const [code,message] = [/<code>(.*)<\/code>/i,/<message>(.*)<\/message>/i].map(pattern=>{
        const patternArr =  pattern.exec(msgXml);
        return patternArr[1]
    });

    if(code === ''){
        prompt.showToast({
            message: decodeURIComponent(message),
            duration: 3000
        });
        return
    }else{
        return code
    }
}

//JSON转xml格式
const deeml = (elements,_name?)=>{
    const json = {}

    elements.map(ele =>{
        const _elements = ele._elements
        if(ele._type === 'element'){
            if(_elements==undefined){
                return
            }
            const thisJson = json[ele._name]
            if(_elements && _elements.length === 1 && _elements[0]._type === 'text'){
                // 如果值存在了
                if(thisJson){
                    handleCommonArr(_elements[0]._text)
                }else{
                    json[ele._name] = _elements[0]._text
                }
            }else{
                if(thisJson){
                    handleCommonArr( deeml(ele._elements,ele._name) )
                }else{
                    json[ele._name] = deeml(ele._elements,ele._name)
                }
            }

            //通用处理重复标签
            function handleCommonArr(obj){
                if(thisJson){
                    if(Array.isArray(thisJson)){
                        json[ele._name].push(obj)
                    }else{
                        json[ele._name] = [json[ele._name],obj]
                    }
                }else{
                    json[ele._name] = obj
                }
            }0
        }else{
            //标签上有属性
            if(ele._attributes){
                json[_name] = {
                    value: ele._text,
                    attributes:ele.__attributes
                }
            }
        }

    });
    return json
};

function isEmpty(param) {
    return!Object.keys(param).length;
}