• Xstream(对象和xml转换)


    package com.vcredit.framework.utils;

    import java.io.Writer;

    import org.apache.commons.lang3.StringUtils;

    import com.thoughtworks.xstream.XStream;
    import com.thoughtworks.xstream.core.util.QuickWriter;
    import com.thoughtworks.xstream.io.HierarchicalStreamWriter;
    import com.thoughtworks.xstream.io.xml.PrettyPrintWriter;
    import com.thoughtworks.xstream.io.xml.XmlFriendlyNameCoder;
    import com.thoughtworks.xstream.io.xml.XppDriver;

    /**
    * XML工具类
    */
    public class XmlUtils {

    /**
    * 创建XStream
    */
    private static XStream createXstream() {
    XStream xstream = new XStream(new MyXppDriver(false));
    xstream.autodetectAnnotations(true);
    return xstream;
    }

    /**
    * 支持注解转化XML
    */
    public static String toXML(Object obj, Class<?> cls) {
    if (obj == null) {
    return null;
    }
    XStream xstream = createXstream();
    xstream.processAnnotations(cls);
    return getDefaultXMLHeader() + xstream.toXML(obj);
    }

    /**
    * Object 转化 XML
    */
    public static String toXML(Object obj) {
    if (obj == null) {
    return null;
    }
    XStream xstream = createXstream();
    return getDefaultXMLHeader() + xstream.toXML(obj);
    }

    /**
    * XML转化为JAVA对象
    */
    @SuppressWarnings("unchecked")
    public static <T> T xml2Obj(String xml, Class<?> cls) {
    if (StringUtils.isBlank(xml)) {
    return null;
    }
    XStream xstream = createXstream();
    if (cls != null) {
    xstream.processAnnotations(cls);
    }
    return (T) xstream.fromXML(xml);
    }

    /**
    * XML转化为JAVA对象
    */
    public static <T> T xml2Obj(String xml) {
    return xml2Obj(xml, null);
    }

    private static String getDefaultXMLHeader() {
    return "<?xml version="1.0" encoding="utf-8"?> ";
    }

    /**
    *
    * @description XppDriver
    *
    * @author lixining
    * @version $Id: XmlUtils.java, v 0.1 2015年8月18日 上午9:46:57 lixining Exp $
    */
    public static class MyXppDriver extends XppDriver {
    boolean useCDATA = false;

    MyXppDriver(boolean useCDATA) {
    super(new XmlFriendlyNameCoder("__", "_"));
    this.useCDATA = useCDATA;
    }

    @Override
    public HierarchicalStreamWriter createWriter(Writer out) {
    if (!useCDATA) {
    return super.createWriter(out);
    }
    return new PrettyPrintWriter(out) {
    boolean cdata = true;

    @Override
    public void startNode(String name, @SuppressWarnings("rawtypes") Class clazz) {
    super.startNode(name, clazz);
    }

    @Override
    protected void writeText(QuickWriter writer, String text) {
    if (cdata) {
    writer.write(cDATA(text));
    } else {
    writer.write(text);
    }
    }

    private String cDATA(String text) {
    return "<![CDATA[" + text + "]]>";
    }
    };
    }
    }
    }

    调用方法String xmlForMobileScore = XmlUtils.toXML(decisionReqForMobileScore);

    再写到文件中:

    String decisionReqName = getSaveFile(timestamp, modelName, "req");
    String decisionResName = getSaveFile(timestamp, modelName, "res");
    logger.info("DecisionClient->Request->" + timestamp + "->" + xml);
    FileUtils.write(new File(decisionReqName), xml, "utf-8");

     解析xml:dom4j

    private DecisionResponse parseDecisionRespXML(String resultXml) throws BusinessException {
    if (StringUtils.isBlank(resultXml)) {
    throw new BusinessException("决策无数据返回");
    }
    DecisionResponse result = new DecisionResponse();
    Element root = Dom4jUtils.getRoot(resultXml);
    Element decisionResult = root.element("DecisionResult");
    // 决策结果-建议拒绝 or 通过
    Element resultElement = decisionResult.element("Result");
    result.setResult(resultElement.getStringValue());

    // 解析拒绝原因
    if (!StringUtils.equals(result.getResult(), "通过")) {
    Element ruleSetElement = decisionResult.element("RuleResultSets");
    List<String> modList = parseRejectRules(decisionResult.element("RejectReasonList"));
    parseRuleSet(result, ruleSetElement, modList);
    }

    // 解析决策评分卡结果
    Element vbInfoSetElement = decisionResult.element("VBInfo");
    parseVBInfoSet(result,vbInfoSetElement);

    // 解析决策评分细节
    Element ruleResultElement = decisionResult.element("RuleResultCanShowSets");
    parseruleResult(result,ruleResultElement);

    Element ruleResultCanShowSets = decisionResult.element("RuleResultCanShowSets");
    parseRelatedRate(result, ruleResultCanShowSets);
    logger.info("Decision Result -> " + GsonUtils.toJson(result));
    return result;
    }

    package com.vcredit.framework.utils;

    import org.apache.commons.lang3.StringUtils;
    import org.dom4j.Document;
    import org.dom4j.DocumentHelper;
    import org.dom4j.Element;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;

    public class Dom4jUtils {
    private static final Logger logger = LoggerFactory.getLogger(Dom4jUtils.class);

    public static Document getDocument(String xml) {
    Document document = null;
    try {
    document = DocumentHelper.parseText(xml);
    if (document == null) {
    throw new RuntimeException("document is null");
    }
    return document;
    } catch (Exception e) {
    logger.error("parse xml fail", e);
    throw new RuntimeException("get document fail", e);
    }
    }

    /**
    * 解析XML获取Root节点
    *
    * @param xml
    * @return Element
    */
    public static Element getRoot(String xml) {
    Document document = getDocument(xml);
    return document.getRootElement();
    }

    /**
    * 获取节点值
    *
    * @param root
    * @param nodeName
    * @return String
    */
    public static String getValue(Element root, String nodeName) {
    try {
    if (root == null || StringUtils.isBlank(nodeName)) {
    return null;
    }
    Element nodeElement = root.element(nodeName);
    if (nodeElement == null) {
    return null;
    }
    return nodeElement.getTextTrim();
    } catch (Exception e) {
    logger.error("get node(" + nodeName + ") value fail");
    return null;
    }
    }

    // public static void main(String[] args) throws IOException {
    // Document doc = getDocument(FileUtils.readFileToString(new File("e:\test\result.xml"), "utf-8"));
    // Element root = doc.getRootElement();
    // List<Element> elementList = root.elements();
    // for (Element element : elementList) {
    // System.err.println("-------------------------->" + element.getName());
    // System.err.println(element.getStringValue());
    // }
    // System.err.println("test");
    // }
    }

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  • 原文地址:https://www.cnblogs.com/muliu/p/5981798.html
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