jackson使用xml转json
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import java.io.StringWriter;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.dataformat.xml.XmlMapper;
import com.testtt.main.model.User;
public class XmlUtil {
private static XmlMapper xmlMapper = new XmlMapper();
private static ObjectMapper objectMapper = new ObjectMapper();
/**
* xml字符串转成JSON格式字符串
*
* @param xmlStr
* @return
*/
public static String convertXmlToJson(String xml) {
StringWriter w = new StringWriter();
try {
JsonParser jp = xmlMapper.getFactory().createParser(xml);
JsonGenerator jg = objectMapper.getFactory().createGenerator(w);
while (jp.nextToken() != null) {
jg.copyCurrentEvent(jp);
}
jp.close();
jg.close();
} catch (Exception e) {
e.printStackTrace();
}
return w.toString();
}
/**
* JSON转换成Object
*
* @param jsonStr
* JSON格式字符串
* @param valueType
* 对象
* @return
*/
public static <T> T readValue(String jsonStr, Class<T> clazz) {
if (objectMapper == null) {
objectMapper = new ObjectMapper();
}
try {
return objectMapper.readValue(jsonStr, clazz);
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
public static void main(String[] args) {
String xml = "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?>"
+ "<user>"
+ "<address>jianXi</address><age>2</age><name>xiaoMing</name><sex>yy</sex><userId>22</userId>"
+ "</user>";
String json = convertXmlToJson(xml);
System.out.println(json);
System.out.println(
readValue(convertXmlToJson(xml), User.class).toString());
}
}
/******User******/
package com.testtt.main.model;
import javax.xml.bind.annotation.XmlRootElement;
//@XmlRootElement
public class User {
private String name;
private String sex;
private String address;
private int age;
private int userId;
public User() {
}
public User(String name, String sex, String address, int age, int userId) {
this.name = name;
this.sex = sex;
this.address = address;
this.age = age;
this.userId = userId;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public int getUserId() {
return userId;
}
public void setUserId(int userId) {
this.userId = userId;
}
@Override
public String toString() {
return "User [name=" + name + ", sex=" + sex + ", address=" + address
+ ", age=" + age + ", userId=" + userId + "]";
}
}
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