springmvc除了自带的部分类型转换之外,还可以自定义类型转换器,按照以下步骤:
1、写一个类实现Converter接口
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package com.hy.springmvc.entities; import org.springframework.core.convert.converter.Converter; import com.google.gson.Gson; public class DepartmentConvertor implements Converter<String, Department> { @Override public Department convert(String source) { System.out.println( "com.hy.springmvc.entities.DepartmentConvertor: " + source); Department department = new Gson().fromJson(source, Department. class ); return department; } } |
2、引入ConversionServiceFactoryBean,将自己写的类注入到bean
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< bean id = "conversionService" class = "org.springframework.context.support.ConversionServiceFactoryBean" > < property name = "converters" > < list > < bean class = "com.hy.springmvc.entities.DepartmentConvertor" ></ bean > </ list > </ property > </ bean > |
3、在<mvc:annotation-driven>里面标注属性conversion-service
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< mvc:annotation-driven conversion-service = "conversionService" > </ mvc:annotation-driven > |
这样在类型转化的过程中就会自动调用这个转换器
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:http://www.cnblogs.com/hy87/p/6322300.html