spring boot 配置全局日期类型转换器

女爷i 2022-01-17 12:41 275阅读 0赞

1.  首先自定义一个类型转换器

import org.springframework.core.convert.converter.Converter;  
import org.springframework.stereotype.Component;

import java.text.ParseException;  
import java.text.SimpleDateFormat;  
import java.util.Date;

@Component  
public class MyDataConvert implements Converter<String, Date> \{  
　　//这里可以自己灵活变通  
private String \[\] pattern = \{"yyyy-MM-dd","yyyy年MM月dd日"\};[br/>@Override  
public Date convert(String s) \{  
System.out.println("convert");  
for (int i=0;i<pattern.length;i++)\{  
try \{  
return new SimpleDateFormat(pattern\[i\]).parse(s);  
\} catch (ParseException e) \{  
continue;  
\}  
\}  
return null;  
\}  
\}][br_Override public Date convert_String s_ _ System.out.println_convert_ for _int i_0_i_pattern.length_i_ try _ return new SimpleDateFormat_pattern_i_.parse_s_ _ catch _ParseException e_ _ continue_ _ _ return null_ _]

2.在配置类中注册自定义类型转换器

import com.example.demo.convert.MyDataConvert;  
import org.springframework.beans.factory.annotation.Autowired;  
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.config.annotation.WebMvcConfigurationSupport;  
import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter;

import javax.annotation.PostConstruct;

@Configuration  
public class WebConfigurer extends WebMvcConfigurationSupport \{

@Autowired
    private RequestMappingHandlerAdapter handlerAdapter;
    
    @PostConstruct
    public void initEditableAvlidation() {
    
        ConfigurableWebBindingInitializer initializer = (ConfigurableWebBindingInitializer)handlerAdapter.getWebBindingInitializer();
        if(initializer.getConversionService()!=null) {
            GenericConversionService genericConversionService = (GenericConversionService)initializer.getConversionService();
            genericConversionService.addConverter(new MyDataConvert());//添加自定义的类型转换器
        }
    }

转载于:https://blog.51cto.com/13963665/2175277

[br_Override public Date convert_String s_ _ System.out.println_convert_ for _int i_0_i_pattern.length_i_ try _ return new SimpleDateFormat_pattern_i_.parse_s_ _ catch _ParseException e_ _ continue_ _ _ return null_ _]: mailto:br/