xml格式转换成json格式

淩亂°似流年 2022-12-07 01:22 368阅读 0赞

## 一、xml格式转换成json格式 ##

package com.herocheer.bms.egjjfw.service.impl;
    
    import com.alibaba.fastjson.JSONArray;
    import com.alibaba.fastjson.JSONObject;
    import org.apache.commons.lang3.StringUtils;
    import org.dom4j.*;
    
    import java.util.List;
    
    public class xmlAndJson { 
        public static void main(String[] args) { 
            try { 
                String rest = "<?xml version=\"1.0\" encoding=\"GBK\"?>\n" +
                        "\n" +
                        "<ROOT>\n" +
                        " <HEAD>\n" +
                        " <DemoCode></DemoCode>\n" +
                        " <ChanCode>11</ChanCode>\n" +
                        " <DemoCent></DemoCent>\n" +
                        " <DemoGlb></DemoGlb>\n" +
                        " <DemoBank></DemoBank>\n" +
                        " <DemoTell></DemoTell>\n" +
                        " <Code>000</Code>\n" +
                        " <Msg>交易成功</Msg>\n" +
                        " <Date>20200909</Date>\n" +
                        " <Time>093035</Time>\n" +
                        " <TrsCode>6029</TrsCode>\n" +
                        " <TrsChild></TrsChild>\n" +
                        " <DemoSerial>1599615034960</DemoSerial>\n" +
                        " </HEAD>\n" +
                        " <BODY>\n" +
                        " <total>500</total>\n" +
                        " <pagesize>19</pagesize>\n" +
                        " <rows>\n" +
                        " <xh>70</xh>\n" +
                        " <demo>1310000000</demo>\n" +
                        " <company>阿里巴巴</company>\n" +
                        " <zxjedhwe>C11112</zxjedhwe>\n" +
                        " </rows>\n" +
                        " <rows>\n" +
                        " <xh>71</xh>\n" +
                        " <demo>13110000000</demo>\n" +
                        " <company>宇宙无敌天下商会</company>\n" +
                        " <zxjedhwe>C11114</zxjedhwe>\n" +
                        " </rows>\n" +
                        " <rows>\n" +
                        " <xh>72</xh>\n" +
                        " <demo>140900000</demo>\n" +
                        " <company>娃哈哈有限公司</company>\n" +
                        " <zxjedhwe>C11111</zxjedhwe>\n" +
                        " </rows>\n" +
                        " </BODY>\n" +
                        "</ROOT>";
    
                JSONObject jsonObject = xml2Json(rest);
                System.out.println(jsonObject);
            } catch (DocumentException e) { 
                e.printStackTrace();
            }
    
        }
    
        /** * xml转json * @param xmlStr * @return * @throws DocumentException */
        public static JSONObject xml2Json(String xmlStr) throws DocumentException { 
            Document doc = DocumentHelper.parseText(xmlStr);
            JSONObject json = new JSONObject();
            dom4j2Json(doc.getRootElement(), json);
            return json;
        }
        public static void dom4j2Json(Element element, JSONObject json) { 
            // 如果是属性
            for (Object o : element.attributes()) { 
                Attribute attr = (Attribute) o;
                if (StringUtils.isNotEmpty(attr.getValue())) { 
                    json.put("@" + attr.getName(), attr.getValue());
                }
            }
            List<Element> chdEl = element.elements();
            if (chdEl.isEmpty() && StringUtils.isNotEmpty(element.getText())) { // 如果没有子元素,只有一个值
                json.put(element.getName(), element.getText());
            }
    
            for (Element e : chdEl) { // 有子元素
                if (!e.elements().isEmpty()) { // 子元素也有子元素
                    JSONObject chdjson = new JSONObject();
                    dom4j2Json(e, chdjson);
                    Object o = json.get(e.getName());
                    if (o != null) { 
                        JSONArray jsona = null;
                        if (o instanceof JSONObject) { // 如果此元素已存在,则转为jsonArray
                            JSONObject jsono = (JSONObject) o;
                            json.remove(e.getName());
                            jsona = new JSONArray();
                            jsona.add(jsono);
                            jsona.add(chdjson);
                        }
                        if (o instanceof JSONArray) { 
                            jsona = (JSONArray) o;
                            jsona.add(chdjson);
                        }
                        json.put(e.getName(), jsona);
                    } else { 
                        if (!chdjson.isEmpty()) { 
                            json.put(e.getName(), chdjson);
                        }
                    }
    
                } else { // 子元素没有子元素
                    for (Object o : element.attributes()) { 
                        Attribute attr = (Attribute) o;
                        if (StringUtils.isNotEmpty(attr.getValue())) { 
                            json.put("@" + attr.getName(), attr.getValue());
                        }
                    }
                    if (!e.getText().isEmpty()) { 
                        json.put(e.getName(), e.getText());
                    }
                }
            }
        }
    }

## 控制台输出： ##

{ "HEAD":{ "Msg":"交易成功","ChanCode":"11","Time":"093035","TrsCode":"6029","DemoSerial":"1599615034960","Code":"000","Date":"20200909"},
    "BODY":{ "total":"500","pagesize":"19","rows":[{ "xh":"70","zxjedhwe":"C11112","company":"阿里巴巴","demo":"1310000000"},
    { "xh":"71","zxjedhwe":"C11114","company":"宇宙无敌天下商会","demo":"13110000000"},
    { "xh":"72","zxjedhwe":"C11111","company":"娃哈哈有限公司","demo":"140900000"}]}}