利用OKhttp網(wǎng)絡(luò)框架，進(jìn)行Maven項(xiàng)目管理

//報(bào)文發(fā)送<dependency> <groupId>com.squareup.okhttp3</groupId> <artifactId>okhttp</artifactId> <version>3.8.0</version></dependency> //報(bào)文解析<dependency> <groupId>xom</groupId> <artifactId>xom</artifactId> <version>1.2.5</version></dependency>

報(bào)文示例

<STUDENT> <AGE>18</AGE> <NAME> <XING>趙</XING> <MING>明玉</MING> </NAME> <NAME> <XING>沙</XING> <MING>明德</MING> </NAME></STUDENT>

報(bào)文拼接

StringBuffer strBuff = new StringBuffer(); strBuff.append('<STUDENT>'); strBuff.append('<AGE>18</AGE>'); strBuff.append('<NAME>'); strBuff.append('<XING>趙</XING>'); strBuff.append('<MING>明玉</MING>'); strBuff.append('</NAME>'); strBuff.append('<NAME>'); strBuff.append('<XING>沙</XING>'); strBuff.append('<MING>明德</MING>'); strBuff.append('</NAME>'); strBuff.append('</STUDENT>'); String xmlStr = strBuff.toString;

報(bào)文發(fā)送，post請(qǐng)求接口調(diào)用，xmlStr為xml格式請(qǐng)求參數(shù)體

public String postXml(String xmlStr){ //可改變請(qǐng)求參數(shù)體編碼GBK/UTF-8 RequestBody body= RequestBody.create(MediaType.parse('application/xml;charset=GBK'), xmlStr); //url為接口地址 Request requestOk = new Request.Builder().url('http://192.168.0.103:8007').post(body).build(); //網(wǎng)絡(luò)請(qǐng)求 OkHttpClient client = new OkHttpClient.Builder().retryOnConnectionFailure(true).build(); //可手動(dòng)設(shè)置連接時(shí)長(zhǎng) OkHttpClient client = new OkHttpClient().newBuilder().connectTimeout(60000, TimeUnit.MILLISECONDS) .readTimeout(60000, TimeUnit.MILLISECONDS) .build(); //獲取處理結(jié)果 Response response = null; try { response = client.newCall(requestOk).execute(); } catch (IOException e) { e.printStackTrace(); } //獲取響應(yīng) String jsonString = response.body().string(); return jsonString； }

報(bào)文解析，進(jìn)行實(shí)體解析

//STUDENT為XML最大節(jié)點(diǎn) JAXBContext context = JAXBContext.newInstance(STUDENT.class); Unmarshaller unmarshaller = context.createUnmarshaller(); //jsonString為報(bào)文響應(yīng) STUDENT student = (STUDENT)unmarshaller.unmarshal(new StringReader(jsonString));

實(shí)體類

//XmlRootElement注解是將類與XML元素進(jìn)行映射，XML節(jié)點(diǎn)與屬性大小寫保持一致@XmlRootElement(name ='STUDENT')public class STUDENT implements Serializable { private String AGE; private List<NAME> NAME; public String getAGE() { return AGE; } public void setAGE(String AGE) { this.AGE = AGE; } public List<NAME> getNAME() { return NAME; } public void setNAME(List<NAME> NAME) { this.NAME = NAME; } @Override public String toString() { return 'Cccc{' + 'AGE=’' + AGE + ’’’ + ', NAME=' + NAME + ’}’; }}

補(bǔ)充知識(shí)：Java發(fā)送內(nèi)容為xml格式請(qǐng)求并解析返回json結(jié)果

封裝成靜態(tài)請(qǐng)求方法：

import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.io.OutputStreamWriter;import java.net.ConnectException;import java.net.MalformedURLException;import java.net.URL;import java.net.URLConnection;/** * 發(fā)送HTTP的一種方法 * GaoLiang */public class HttpSendUtil { public static String xmlPost(String urlStr, String xmlInfo) { try { URL url = new URL(urlStr); URLConnection con = url.openConnection(); con.setDoOutput(true);// con.setRequestProperty('Pragma:', 'no-cache');// con.setRequestProperty('Cache-Control', 'no-cache'); // 一定要設(shè)置報(bào)文格式，否則發(fā)送失敗 con.setRequestProperty('Content-Type', 'text/xml'); OutputStreamWriter out = null; try { out = new OutputStreamWriter(con.getOutputStream()); } catch (ConnectException e) {// e.printStackTrace(); return 'Connection refused'; }// System.out.println('urlStr=' + urlStr);// System.out.println('xmlInfo=' + xmlInfo); out.write(new String(xmlInfo.getBytes('ISO-8859-1'))); out.flush(); out.close(); BufferedReader br = new BufferedReader(new InputStreamReader(con.getInputStream())); StringBuilder stringBuilder = new StringBuilder(); String line = ''; for (line = br.readLine(); line != null; line = br.readLine()) {// System.out.println(line); stringBuilder.append(line); } return stringBuilder.toString(); } catch (MalformedURLException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return null; }

在外部調(diào)用靜態(tài)方法：

// 請(qǐng)求的xml服務(wù)地址String url = url;// 請(qǐng)求參數(shù) 由于是手動(dòng)拼寫的參數(shù)很長(zhǎng) 看起來(lái)也不美觀就不放了（手動(dòng)哭臉）String param = '' ;// 發(fā)送請(qǐng)求 調(diào)用上面的靜態(tài)方法String ret = xmlPost(url,param);// 得到的是xml格式的返回結(jié)果 但是里面的“<”,“>”都是“&lt;”,“&gt;”顯示 所以就需要解析，具體解析見下表ret = ret.replaceAll('&lt;', '<');ret = ret.replaceAll('&gt;', '>');ret = ret.replaceAll('&amp;', '&');ret = ret.replaceAll('&quot;', ''');ret = ret.replaceAll('&apos;', '’');// 因?yàn)榻涌谧罱K要返回的是json格式 所以還要把想要的值取出來(lái)解析成String// 解析 拿到節(jié)點(diǎn)里想要的值Document document = DocumentHelper.parseText(ret);// 根節(jié)點(diǎn) 這里不一定要和根節(jié)點(diǎn)取一樣的名字 可自定義 這么寫是方便理解Element root = document.getRootElement();// root節(jié)點(diǎn)下的子節(jié)點(diǎn)Element business = root.element('business');//解析完 取到business節(jié)點(diǎn)下的值String healthCode = business.getStringValue();// 拼接返回值Map<String,Object> thisResult = new HashMap();thisResult.put('healthCode',healthCode);resultList.add(thisResult);// 統(tǒng)一返回值Map<String,Object> returnset = new HashMap<>();

xml解析五種格式：

補(bǔ)充一下：xml返回結(jié)果類似于這樣

<?xml version='1.0' encoding='utf-8' ?><Root><business>我想要的值:healthCode</business ></Root>

最后，由于時(shí)間比較匆忙，又沒有接觸過xml格式請(qǐng)求，確實(shí)折磨了我一陣子時(shí)間，搜了好多大神寫的博客，最終整理出自己的。寫的比較笨希望大家?guī)兔χ更c(diǎn)，互相學(xué)習(xí)。 奧利給，沖了！

以上這篇java中xml進(jìn)行報(bào)文發(fā)送和解析操作就是小編分享給大家的全部?jī)?nèi)容了，希望能給大家一個(gè)參考，也希望大家多多支持好吧啦網(wǎng)。