中国行政区划采集代码

中国行政区划采集.js

@@ -0,0 +1,74 @@
+// let originalString = "北京市（市）";
+// let encodedString = encodeURIComponent(originalString);
+
+let htmlString = await $.get(`http://xzqh.mca.gov.cn/defaultQuery?shengji=-1&diji=-1&xianji=-1`);
+htmlString = htmlString.replace(/(\r\n|\n|\r)+/g, ' ').trim();
+let parser = new DOMParser();
+let doc = parser.parseFromString(htmlString, "text/html");
+let match = /(?<=var\s+json\s*=\s*)\[.*?\](?=\s*;)/gs;
+let provinceList = JSON.parse(doc.getElementsByTagName('script')[21].textContent.match(match)[0]);
+let baseInfo = JSON.parse(doc.getElementById('pyArr').value);
+let res = [];
+res = res.concat(pushRes(provinceList.map(e => e.quHuaDaiMa), null, 1));
+
+for (let i = 0; i < provinceList.length; i++) {
+    let cityList = await getChildRegion(provinceList[i].quHuaDaiMa);
+    if (cityList.length) {
+        // 将结果纳入树型数据
+        res = res.concat(pushRes(cityList, provinceList[i].quHuaDaiMa, 2));
+        for (let j = 0; j < cityList.length; j++) {
+            let districtList = await getChildRegion(cityList[j]);
+            if (districtList.length) {
+                // 将结果纳入树型数据
+                res = res.concat(pushRes(districtList, cityList[j], 3));
+            } else {
+                res.find(e => e.code == cityList[j]).level = 3;
+                // 补一个市，与省同名
+                if (res.filter(f => f.code == provinceList[i].quHuaDaiMa && f.level == 2).length == 0) {
+                    res = res.concat(pushRes([provinceList[i].quHuaDaiMa], provinceList[i].quHuaDaiMa, 2));
+                }
+            }
+        }
+    }
+}
+
+// 转换为树形结构
+let resArr = [];
+
+for (let i = 0; i < 3; i++) {
+    if (i == 0) {
+        resArr = resArr.concat(res.filter(e => e.level == i + 1));
+        continue;
+    }
+    res.filter(e => e.level == i).forEach(fe => {
+        fe.children = res.filter(fl => fl.parentCode == fe.code && fl.level == i + 1);
+    });
+}
+console.log(resArr);
+
+function pushRes(resList, parentCode, level) {
+    let res = [];
+    resList.forEach(e => {
+        let eObj = baseInfo.find(f => f.code == e);
+        res.push({
+            code: e,
+            name: eObj.cName,
+            py: eObj.py.match(/[^\s]+/g)[0],
+            jp: eObj.jp,
+            parentCode: parentCode,
+            level: level
+        });
+    });
+    return res;
+}
+
+async function getChildRegion(parentRegion) {
+    let result = await fetch(`http://xzqh.mca.gov.cn/getInfo?code=${parentRegion}&type=2`)
+    let child;
+    try {
+        child = await result.json();
+        return Object.keys(child);
+    } catch (error) {
+        return [];
+    }
+}