json-lib首字母大写的json串转javabean

Posted 2020-09-17

依赖jar：

commons-beanutils-1.9.3.jar?

commons-collections-3.1.jar

commons-lang-2.4.jar

commons-logging-1.2.jar

ezmorph-1.0.6.jar

json-lib-2.4-jdk15.jar

 

测试程序：

1、Person.java:

import java.util.List;

/**
 * Created by Administrator on 2017/5/6.
 */
public class Person {
    private int id;
    private String name;
    private List<Address> addresses;

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public List<Address> getAddresses() {
        return addresses;
    }

    public void setAddresses(List<Address> addresses) {
        this.addresses = addresses;
    }

    @Override
    public String toString() {
        return "Person{" +
                "id=" + id +
                ", name=‘" + name + ‘\‘‘ +
                ", addresses=" + addresses +
                ‘}‘;
    }
}

2、Address.java:

public class Address {
    private String name;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    @Override
    public String toString() {
        return "Address{" +
                "name=‘" + name + ‘\‘‘ +
                ‘}‘;
    }
}

3、主函数

JsonConfig config=new JsonConfig();
config.setRootClass(Person.class);

Map<String,Class<?>> classMap = new HashMap<String,Class<?>>();
classMap.put("addresses", Address.class);
config.setClassMap(classMap);

PropertyNameProcessor lowerCasePropertyNameProcessor = new PropertyNameProcessor() {
    @Override
    public String processPropertyName(Class aClass, String s) {
        return s.substring(0,1).toLowerCase() + s.substring(1);
    }
};

config.registerJavaPropertyNameProcessor(Person.class, lowerCasePropertyNameProcessor);
config.registerJavaPropertyNameProcessor(Address.class, lowerCasePropertyNameProcessor);

//大写转bean小写
String jsonString = "{\"Id\":3,\"Name\":\"xiaoming\",\"Addresses\":[{\"Name\":\"xian\"}]}";
JSONObject jsonObject = JSONObject.fromObject(jsonString);
Person person = (Person) JSONObject.toBean(jsonObject, config);
System.out.println(person);

4、运行结果
Person{id=3, name=‘xiaoming‘, addresses=[Address{name=‘xian‘}]}