环境路径问题
SpringBoot中我们可以利用ClassPathResource类，利用相对路径载入classPath路径下的文件配置。
xml文件的载入
/*
* 读入xml文件并序列化成javaBean
*/
public DeviceList getDevice() throws IOException, JAXBException {
String fileName = "device.xml";
File file = new File(fileName);
InputStream inputStream = null;
if (!file.exists()) {
inputStream = new ClassPathResource("device.xml").getInputStream();
} else {
inputStream = Files.newInputStream(file.toPath());
}
BufferedReader br = new BufferedReader(
new InputStreamReader(inputStream, StandardCharsets.UTF_8));
StringBuilder buffer = new StringBuilder();
String line = "";
while((line = br.readLine())!=null) {
buffer.append(line);
}
br.close();
Object xmlObject = null;
Reader reader = null;
JAXBContext context = JAXBContext.newInstance(DeviceList.class);
Unmarshaller unmarshaller = context.createUnmarshaller();
reader = new StringReader(buffer.toString());
//以文件流的方式传入这个string
xmlObject = unmarshaller.unmarshal(reader);
reader.close();
DeviceList deviceList = (DeviceList) xmlObject;
return deviceList;
}//child节点类
public class Device {
private String name; //channelCode
private String deviceNo;
private String address;
private int enter;
private int type;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDeviceNo() {
return deviceNo;
}
public void setDeviceNo(String deviceNo) {
this.deviceNo = deviceNo;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public int getEnter() {
return enter;
}
public void setEnter(int enter) {
this.enter = enter;
}
public int getType() {
return type;
}
public void setType(int type) {
this.type = type;
}
}
public class DeviceList {
private List<Device> deviceList;
public List<Device> getDeviceList() {
return deviceList;
}
public void setDeviceList(List<Device> deviceList) {
this.deviceList = deviceList;
}
}载入的device.xml文件
<devices>
<device>
<name>hilee</name>
<deviceNo>xjxjxjx</deviceNo>
<address>xxx</address>
<enter>0</enter>
<type>0</type>
</device>
</devices>properties文件载入
public IccConfig getIccConfig() {
try {
String fileName = "icc.properties";
Properties properties = new Properties();
File file = new File(fileName);
if (file.exists()) {
properties.load(Files.newInputStream(file.toPath()));
} else {
properties.load(new ClassPathResource(fileName).getInputStream());
}
IccConfig icConfig = new IccConfig();
icConfig.setHost(properties.getProperty("host"));
icConfig.setUsername(properties.getProperty("username"));
icConfig.setPassword(properties.getProperty("password"));
icConfig.setClientId(properties.getProperty("clientId"));
icConfig.setClientSecret(properties.getProperty("clientSecret"));
icConfig.setPwdClientId(properties.getProperty("pwdClientId"));
icConfig.setPwdClientSecret(properties.getProperty("pwdClientSecret"));
return icConfig;
} catch (IOException e) {
throw new RuntimeException(e);
}
}public class IccConfig {
private String host;
private String clientId;
private String clientSecret;
private String pwdClientId;
private String username;
private String pwdClientSecret;
private String password;
public String getHost() {
return host;
}
public void setHost(String host) {
this.host = host;
}
public String getClientId() {
return clientId;
}
public void setClientId(String clientId) {
this.clientId = clientId;
}
public String getClientSecret() {
return clientSecret;
}
public void setClientSecret(String clientSecret) {
this.clientSecret = clientSecret;
}
public String getPwdClientId() {
return pwdClientId;
}
public void setPwdClientId(String pwdClientId) {
this.pwdClientId = pwdClientId;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPwdClientSecret() {
return pwdClientSecret;
}
public void setPwdClientSecret(String pwdClientSecret) {
this.pwdClientSecret = pwdClientSecret;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}xml的序列化
protected void saveDeviceXML(Collection<Device> devices) {
try {
DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
Document document = builder.newDocument();
Element element = document.createElement("devices");
devices.forEach(item -> {
if (null!=item.getName() && !"".equals(item.getName())) {
Element device = document.createElement("device");
Element name = document.createElement("name");
Element deviceNo = document.createElement("deviceNo");
Element address = document.createElement("address");
Element enter = document.createElement("enter");
Element type = document.createElement("type");
name.setTextContent(item.getName());
deviceNo.setTextContent(item.getDeviceNo());
address.setTextContent(item.getAddress());
enter.setTextContent(String.valueOf(item.getEnter()));
type.setTextContent(String.valueOf(item.getType()));
device.appendChild(name);
device.appendChild(deviceNo);
device.appendChild(address);
device.appendChild(enter);
device.appendChild(type);
element.appendChild(device);
}
});
document.appendChild(element);
TransformerFactory factory = TransformerFactory.newInstance();
Transformer transformer = factory.newTransformer();
document.setXmlStandalone(true);
transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
String fileName = "device.xml";
File file = new File(fileName);
FileOutputStream outputStream = null;
if (!file.exists()) {
ClassPathResource pathResource = new ClassPathResource(fileName);
outputStream = new FileOutputStream(pathResource.getFile());
} else {
outputStream = new FileOutputStream(file);
}
transformer.transform(new DOMSource(document), new StreamResult(outputStream));
outputStream.close();
} catch (ParserConfigurationException | TransformerException | IOException e) {
throw new RuntimeException(e);
}
}properties序列化
protected void saveIccProperties(IccConfig iccConfig) {
try {
Properties properties = new Properties();
properties.setProperty("host", iccConfig.getClientId());
properties.setProperty("username", iccConfig.getClientSecret());
properties.setProperty("password", iccConfig.getHost());
properties.setProperty("clientId", iccConfig.getUsername());
properties.setProperty("clientSecret", iccConfig.getPassword());
properties.setProperty("pwdClientId", iccConfig.getPwdClientId());
properties.setProperty("pwdClientSecret", iccConfig.getPwdClientSecret());
String fileName = "icc.properties";
File file = new File(fileName);
OutputStream outputStream = null;
if (!file.exists()) {
ClassPathResource pathResource = new ClassPathResource(fileName);
outputStream = new FileOutputStream(pathResource.getFile());
} else {
outputStream = Files.newOutputStream(file.toPath());
}
properties.store(outputStream, null);
} catch (Exception e) {
e.printStackTrace();
}
}