表单校验：
Jar包：
<!-- 表单校验的依赖--> <!--数据验证--> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-validator</artifactId> <version>4.0.1.GA</version> </dependency> <!--jboss logging--> <dependency> <groupId>org.jboss.logging</groupId> <artifactId>jboss-logging</artifactId> <version>3.3.0.Final</version> </dependency> <!--validation api--> <dependency> <groupId>javax.validation</groupId> <artifactId>validation-api</artifactId> <version>1.0.0.GA</version> </dependency> <!--slf4j api--> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.7.21</version> </dependency>
类：
package cn.biaodanjiaoyan; import org.springframework.stereotype.Controller; import org.springframework.validation.BindingResult; import org.springframework.validation.FieldError; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.servlet.ModelAndView; import javax.validation.Valid; import static java.awt.SystemColor.info; /** * Created by 席洪丽 on 2017/8/30. */ @Controller public class FirstController { @RequestMapping("/first") public ModelAndView doFirst(@Valid UserInfo info, BindingResult br) { ModelAndView mv = new ModelAndView(); mv.setViewName("/welcome.jsp"); int errorCount = br.getErrorCount(); if (errorCount > 0) { FieldError score = br.getFieldError("score"); FieldError name = br.getFieldError("name"); FieldError phone = br.getFieldError("name"); if (score != null) { mv.addObject("scoremsg", score.getDefaultMessage()); } if (name != null) { mv.addObject("namemsg", score.getDefaultMessage()); } if (phone != null) { mv.addObject("phonemsg", score.getDefaultMessage()); } mv.setViewName("/index.jsp"); } return mv; } }
package cn.biaodanjiaoyan; import org.hibernate.validator.constraints.NotEmpty; import javax.validation.constraints.Max; import javax.validation.constraints.Min; import javax.validation.constraints.Pattern; import javax.validation.constraints.Size; public class UserInfo { @Min(value = 0,message = "成绩最小值为{va}") @Max(value = 100,message = "成绩最大值为{va}") private Integer score; public Integer getScore() { return score; } public void setScore(Integer score) { this.score = score; } public String getPhone() { return phone; } public void setPhone(String phone) { this.phone = phone; } public String getName() { return name; } public void setName(String name) { this.name = name; } @NotEmpty(message = "手机号不允许为空") @Pattern(regexp = "^1[3,4,5,6,7,8,9]\\d{9}$",message = "手机号码不正确") private String phone; @NotEmpty(message = "用户名不能为空") @Size(min = 6,message = "名称至少6个字符") private String name; }
配置文件：
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:p="http://www.springframework.org/schema/p" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> <context:component-scan base-package="cn.wenjianshangchuan"/> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <mvc:annotation-driven/> </beans>
表单：
<h1>数据校验</h1> <form action="/first" method="post"> 成绩:<input name="score" /> <span>${scoremsg }</span><br/><br/> 姓名:<input name="name"/><span>${namemsg }</span><br/><br/> 电话:<input name="phone"/><span>${phonemsg }</span><br/><br/> <input type="submit" value="注册"/> </form>
文件上传：
Jar包：
<!--文件上传的jar包--> <dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>1.3.1</version> </dependency> <dependency> <groupId>commons-io</groupId> <artifactId>commons-io</artifactId> <version>1.4</version> </dependency>
类1：package cn.wenjianshangchuan; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.multipart.MultipartFile; import javax.servlet.http.HttpSession; import java.io.File; import java.io.IOException; @Controller public class FirstController { @RequestMapping("/first") public String doFirst(MultipartFile upload, HttpSession session){ String childpath=upload.getOriginalFilename(); String parenPath=session.getServletContext().getRealPath("/upload"); File filepath=new File(parenPath,childpath); try { upload.transferTo(filepath); return "/welcome.jsp"; } catch (IOException e) { e.printStackTrace(); return "/fileupload.jsp"; } } }
类2：
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:p="http://www.springframework.org/schema/p" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> <context:component-scan base-package="cn.wenjianshangchuan"/> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <mvc:annotation-driven/> </beans>
表单：<h1>文件上传</h1> <form action="/first" method="post" enctype="multipart/form-data"> 文件<input type="file" name="upload"/> <input type="submit"/> </form>
