SpringMVC_03兩種傳參方式：類對象、原生servletAPI

springMVC常用的兩種傳參方式

1.使用pojo作爲入參：
SpringMVC 會按照請求參數名和POJO屬性名進行自動匹配，自動爲該對象填充屬性值。並支持級聯屬性。如dept.deptId、dept.address.tel等。表單中的name屬性值要與類中的變量名相對應。

2.使用原生ServletAPI作爲入參,具體支持一下類型：
HttpServletRequest
HttpServletReponse
java.security.Principal
Locale
InputStream
OutputStream
Reader
Writer

代碼

handler

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;


import cn.sycu.sunqg.entity.userBean;
import jdk.nashorn.internal.ir.RuntimeNode.Request;

@Controller
public class helloWord {
	
	private static final String success = "success";
	
	@RequestMapping("testServletApi")
	public String testServletApi(HttpServletRequest request,
			HttpServletResponse response) throws IOException{
			
		System.out.print(request + "," +response);
		return success;
	}
	
	@RequestMapping("testPojo")
	public String testPojo(userBean user){
		System.out.println(user);
		return success;
	}
	

}

userbean

public class userBean {
	private String userName;
	private String passWord;
	
	private String email;
	private Integer age;
	private Address address;
	
	public String getUserName() {
		return userName;
	}
	public void setUserName(String userName) {
		this.userName = userName;
	}
	public String getPassWord() {
		return passWord;
	}
	public void setPassWord(String passWord) {
		this.passWord = passWord;
	}
	public String getEmail() {
		return email;
	}
	public void setEmail(String email) {
		this.email = email;
	}
	public Integer getAge() {
		return age;
	}
	public void setAge(Integer age) {
		this.age = age;
	}

	public Address getAddress() {
		return address;
	}
	public void setAddress(Address address) {
		this.address = address;
	}
	@Override
	public String toString() {
		return "userBean [userName=" + userName + ", passWord=" + passWord + ", email=" + email + ", age=" + age
				+ ", address=" + address + "]";
	}
}

addressbean

public class Address {

	private String province;
	private String city;
	public String getProvince() {
		return province;
	}
	public void setProvince(String province) {
		this.province = province;
	}
	public String getCity() {
		return city;
	}
	public void setCity(String city) {
		this.city = city;
	}
	@Override
	public String toString() {
		return "Address [province=" + province + ", city=" + city + "]";
	}
}

jsp

<a href="testServletApi">test servlet</a>
<br>
<form action="testPojo" method="post">
username:<input type="text" name="userName">
<br>
password:<input type="password" name="passWord">
	<br>
	email:<input type="text" name="email">
	<br>
	age:<input type="text" name="age">
	<br>
	city:<input type="text" name="address.city">
	<br>
	province:<input type="text" name="address.province">
	<br>
	<input type="submit" value="submit"/>
</form>

本人初學

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