SpringMVC学习（六）-自定义类型转换器

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完成实现自定义类型转换器的重点：

1）编写类型转换器

2）配置配置文件（定义转换器）

3)控制层代码

1.定义的类型转换器

package com.springmvc.controller;import org.springframework.core.convert.converter.Converter;import org.springframework.core.convert.converter.ConverterFactory;import org.springframework.stereotype.Component;import com.springmvc.crud.entiry.Department;import com.springmvc.crud.entiry.Employee;@Componentpublic class EmployeeConverter implements Converter<String,Employee> {    @Override    public Employee convert(String source) {        if(source!=null) {            String[] vals=source.split("-");            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;    }}

2.控制层

package com.springmvc.controller;import org.springframework.core.convert.converter.Converter;import org.springframework.core.convert.converter.ConverterFactory;import org.springframework.stereotype.Component;import com.springmvc.crud.entiry.Department;import com.springmvc.crud.entiry.Employee;@Componentpublic class EmployeeConverter implements Converter<String,Employee> {    @Override    public Employee convert(String source) {        if(source!=null) {            String[] vals=source.split("-");            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;    }}

3.配置文件

package com.springmvc.controller;import org.springframework.core.convert.converter.Converter;import org.springframework.core.convert.converter.ConverterFactory;import org.springframework.stereotype.Component;import com.springmvc.crud.entiry.Department;import com.springmvc.crud.entiry.Employee;@Componentpublic class EmployeeConverter implements Converter<String,Employee> {    @Override    public Employee convert(String source) {        if(source!=null) {            String[] vals=source.split("-");            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;    }}

4.jsp页面

<form action="testConversionServiceConverer" method="POST">        <!-- lastname-email-gender-department.id -->        Employee:<input type="text" name="employee"/>        <input type="submit" value="Submit"/></form>

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