import org.springframework.core.convert.converter.Converter;
import org.springframework.util.StringUtils;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
/**
* @author lixiao
* @date 2019/8/7 14:57
*/
public class StringToDateConverter implements Converter<String, Date> {
private static final String DATE_FORMAT = "yyyy-MM-dd HH:mm:ss";
private static final String SHORT_DATE_FORMAT = "yyyy-MM-dd";
private static final String DATE_FORMAT2 = "yyyy/MM/dd HH:mm:ss";
private static final String SHORT_DATE_FORMAT2 = "yyyy/MM/dd";
private static final String COLON = ":";
private static final String BAR = "-";
private static final String SLASH = "/";
@Override
public Date convert(String source) {
if (StringUtils.isEmpty(source)) {
return null;
}
source = source.trim();
try {
if (source.contains(BAR)) {
return getDate(source, DATE_FORMAT, SHORT_DATE_FORMAT);
} else if (source.contains(SLASH)) {
return getDate(source, DATE_FORMAT2, SHORT_DATE_FORMAT2);
}
} catch (Exception e) {
throw new RuntimeException(String.format("parser %s to Date fail", source));
}
throw new RuntimeException(String.format("parser %s to Date fail", source));
}
private Date getDate(String source, String dateFormat, String shortDateFormat) throws ParseException {
SimpleDateFormat formatter;
if (source.contains(COLON)) {
formatter = new SimpleDateFormat(dateFormat);
} else {
formatter = new SimpleDateFormat(shortDateFormat);
}
return formatter.parse(source);
}
}
import org.springframework.context.annotation.Configuration;
import org.springframework.core.convert.support.GenericConversionService;
import org.springframework.web.bind.support.ConfigurableWebBindingInitializer;import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter;
import javax.annotation.PostConstruct;
import javax.annotation.Resource;
/**
* @author lixiao
* @date 2019/7/30 17:26
*/
@Configuration
public class MvcConfig implements WebMvcConfigurer {
@Resource
private RequestMappingHandlerAdapter handlerAdapter;
/**
* 在方法上加该注解会在项目启动的时候执行该方法,也可以理解为在spring容器初始化的时候执行该方法
*/
@PostConstruct
public void initEditableValidation(){
ConfigurableWebBindingInitializer initializer = (ConfigurableWebBindingInitializer) handlerAdapter.getWebBindingInitializer();
if (initializer != null) {
if (initializer.getConversionService() != null) {
GenericConversionService genericConversionService = (GenericConversionService) initializer.getConversionService();
genericConversionService.addConverter(new StringToDateConverter());
}
}
}
}