新建一個自定義轉換器

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

import com.atguigu.springmvc.crud.entities.Department;
import com.atguigu.springmvc.crud.entities.Employee;

@Component
public class EmployeeConverter implements Converter<String, Employee> {

    @Override
    
 
public Employee convert(String source) {
        if(source != null){
            String [] vals = source.split("-");
            //[email protected]
            if(vals != null && vals.length == 4){
                String lastName = vals[0];
                String email = vals[1];
                Integer gender 
 
= Integer.parseInt(vals[2]);
                Department department = new Department();
                department.setId(Integer.parseInt(vals[3]));
                
                Employee employee = new Employee(null, lastName, email, gender, department);
                System.out.println(source + "
 
--convert--" + employee);
                return employee;
            }
        }
        return null;
    }

}

配置xml

　　<!-- 配置 ConversionService -->
    <bean id="conversionService"
        class="org.springframework.format.support.FormattingConversionServiceFactoryBean">
        <property name="converters">
            <set>
                <ref bean="employeeConverter"/>  <!--  自定義的類名,首字母小寫 -->
            </set>
        </property>    
    </bean>

　　<mvc:annotation-driven conversion-service="conversionService"></mvc:annotation-driven>

Spring MVC 自定義類型轉換器