[英]json deserialize using jackson api
pojo課
class Authentication {
private static final long serialVersionUID = 3808270497038004505L;
public Authentication(){
}
private String userName;
private String passWord;
public String getuserName() {
return userName;
}
public void setuserName(String userName) {
userName = userName;
}
public String getpassWord() {
return passWord;
}
public void setpassWord(String passWord) {
passWord = passWord;
}
}
控制者
Authentication authentication= (Authentication) new JSONDeserializer<T>().deserialize(data,Authentication.class);
return new ModelAndView().addObject(authentication);
傳遞數據
{"userName":"kadires","passWord":"ramgopal"}
結果
System.out.println(authentication.getpassWord()+authentication.getuserName());
{"authentication":{"userName":null,"passWord":null}}
請幫我
檢查安裝員的書寫是否正確。 get之后的首字母必須為大寫。
您也可以創建NullSerializer的實現。 例如:
public class NullSerializer extends JsonSerializer<Object> {
@Override
public void serialize(Object value, JsonGenerator jgen, SerializerProvider provider) throws IOException, JsonProcessingException {
jgen.writeString("");
}
}
然后只需將NullSerializer設置為ObjectMapper:
ObjectMapper objMapper = new ObjectMapper();
StdSerializerProvider sp = new StdSerializerProvider();
sp.setNullValueSerializer(new NullSerializer());
objMapper.setSerializerProvider(sp);
問題可能是setter,它們以小寫字母setuser ... setpassword開頭,首字母大寫,這是慣例。
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