1 public class JaxbUtil { 2 3 /** 4 * java对象转换为xml文件 5 * 6 * @param xmlPath xml文件路径 7 * @param load java对象.Class 8 * @return xml文件的String 9 * @throws JAXBException 10 */ 11 public static String beanToXml(Object obj, Class<?> load) throws JAXBException { 12 JAXBContext context = JAXBContext.newInstance(load); 13 Marshaller marshaller = context.createMarshaller(); 14 marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, false); 15 StringWriter writer = new StringWriter(); 16 marshaller.marshal(obj, writer); 17 return writer.toString(); 18 } 19 20 /** 21 * xml文件配置转换为对象 22 * 23 * @param xmlPath xml文件路径 24 * @param load java对象.Class 25 * @return java对象 26 * @throws JAXBException 27 * @throws IOException 28 */ 29 @SuppressWarnings("unchecked") 30 public static <T> T xmlToBean(String xmlPath, Class<T> load) throws JAXBException, IOException { 31 JAXBContext context = JAXBContext.newInstance(load); 32 Unmarshaller unmarshaller = context.createUnmarshaller(); 33 return (T) unmarshaller.unmarshal(new StringReader(xmlPath)); 34 } 35 36 /** 37 * JavaBean转换成xml 默认编码UTF-8 38 * 39 * @param obj 40 * @param writer 41 * @return 42 */ 43 public static String convertToXml(Object obj) { 44 return convertToXml(obj, "UTF-8"); 45 } 46 47 /** 48 * JavaBean转换成xml 49 * 50 * @param obj 51 * @param encoding 52 * @return 53 */ 54 public static String convertToXml(Object obj, String encoding) { 55 String result = null; 56 try { 57 JAXBContext context = JAXBContext.newInstance(obj.getClass()); 58 Marshaller marshaller = context.createMarshaller(); 59 marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true); 60 marshaller.setProperty(Marshaller.JAXB_ENCODING, encoding); 61 //去掉生成xml的默认报文头 62 marshaller.setProperty(Marshaller.JAXB_FRAGMENT, true); 63 StringWriter writer = new StringWriter(); 64 writer.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>" + "\n "); 65 marshaller.marshal(obj, writer); 66 result = writer.toString(); 67 } catch (Exception e) { 68 e.printStackTrace(); 69 } 70 return result; 71 } 72 73 /** 74 * JavaBean转换成xml去除xml声明部分 75 * 76 * @param obj 77 * @param encoding 78 * @return 79 */ 80 public static String convertToXmlIgnoreXmlHead(Object obj, String encoding) { 81 String result = null; 82 try { 83 JAXBContext context = JAXBContext.newInstance(obj.getClass()); 84 Marshaller marshaller = context.createMarshaller(); 85 marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true); 86 marshaller.setProperty(Marshaller.JAXB_ENCODING, encoding); 87 marshaller.setProperty(Marshaller.JAXB_FRAGMENT, true); 88 StringWriter writer = new StringWriter(); 89 marshaller.marshal(obj, writer); 90 result = writer.toString(); 91 } catch (Exception e) { 92 e.printStackTrace(); 93 } 94 return result; 95 } 96 97 /** 98 * xml转换成JavaBean 99 * 100 * @param xml 101 * @param c 102 * @return 103 */ 104 @SuppressWarnings("unchecked") 105 public static <T> T converyToJavaBean(String xml, Class<T> c) { 106 T t = null; 107 try { 108 JAXBContext context = JAXBContext.newInstance(c); 109 Unmarshaller unmarshaller = context.createUnmarshaller(); 110 t = (T) unmarshaller.unmarshal(new StringReader(xml)); 111 } catch (Exception e) { 112 e.printStackTrace(); 113 } 114 return t; 115 } 116 117 private static OutputFormat createPrettyPrint() { 118 OutputFormat format = new OutputFormat(); 119 //format.setIndentSize(2); 120 format.setNewLineAfterDeclaration(false); 121 format.setNewlines(true); 122 format.setTrimText(false); 123 format.setPadText(false); 124 return format; 125 } 126 127 /** 128 * 129 * @Title: formatXml 130 * @author:humingbo 131 * @date:2019年7月18日上午11:35:08 132 * @Description: 格式化xml方法 133 * @param str 134 * @return 135 * @throws Exception 136 */ 137 public static String formatXml(String str) throws Exception { 138 Document document = null; 139 document = DocumentHelper.parseText(str); 140 // 格式化输出格式 141 OutputFormat format = createPrettyPrint(); 142 format.setEncoding("UTF-8"); 143 StringWriter writer = new StringWriter(); 144 // 格式化输出流 145 XMLWriter xmlWriter = new XMLWriter(writer, format); 146 // 将document写入到输出流 147 xmlWriter.write(document); 148 xmlWriter.close(); 149 return writer.toString(); 150 } 151 }
原文地址:https://www.cnblogs.com/huzi007/p/11334765.html
时间: 2024-09-29 08:21:32