JSR303和拦截器

 

目录

一、JSR303的实现

二、拦截器的初步认识

 拦截器链

三、登录权限控制 

---

一、JSR303的实现

 

/* @NotNull ：作用于基本数据类型
 *   @NotEmpty    作用于集合
 *   @NotBlank    作用于字符串
 */

 

package com.zking.oa.model;
 
import sun.plugin2.message.Message;
 
import javax.validation.constraints.NotBlank;
import javax.validation.constraints.NotNull;
 
/**
 * @NotNull ：作用于基本数据类型
 *   @NotEmpty    作用于集合
 *   @NotBlank    作用于字符串
 */
public class Clazz {
    @NotNull(message="cid不能为空")
    private Integer cid;
    @NotBlank(message="班级不能为空")
    private String cname;
 
    @NotBlank(message="教员不能为空")
    private String cteacher;
 
    private String pic;
 
    public Clazz(Integer cid, String cname, String cteacher, String pic) {
        this.cid = cid;
        this.cname = cname;
        this.cteacher = cteacher;
        this.pic = pic;
    }
 
    public Clazz() {
        super();
    }
 
    public Integer getCid() {
        return cid;
    }
 
    public void setCid(Integer cid) {
        this.cid = cid;
    }
 
    public String getCname() {
        return cname;
    }
 
    public void setCname(String cname) {
        this.cname = cname;
    }
 
    public String getCteacher() {
        return cteacher;
    }
 
    public void setCteacher(String cteacher) {
        this.cteacher = cteacher;
    }
 
    public String getPic() {
        return pic;
    }
 
    public void setPic(String pic) {
        this.pic = pic;
    }
}

 使用：

.jsr303服务daunt校验

1.pom导入

2.在待校验的数据库对应的实体类属性打上校验标签

非空校验

3.在controller层方法上添加@Valid

注释配合前面校验标签台添加Bindingresult次对象包含了所有，校验位通过的错误信息

4可以将所有错误信息以集合方式保存并且传递到前台界面展示

 pom.xml

        
            org.hibernate
            hibernate-validator
            6.0.7.Final
        

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
 
    <groupId>org.example</groupId>
    <artifactId>ssm3</artifactId>
    <version>1.0-SNAPSHOT</version>
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
        <maven.compiler.plugin.version>3.7.0</maven.compiler.plugin.version>
 
        <!--添加jar包依赖-->
        <!--1.spring 5.0.2.RELEASE相关-->
        <spring.version>5.0.2.RELEASE</spring.version>
        <!--2.mybatis相关-->
        <mybatis.version>3.4.5</mybatis.version>
        <!--mysql-->
        <mysql.version>5.1.44</mysql.version>
        <!--pagehelper分页jar依赖-->
        <pagehelper.version>5.1.2</pagehelper.version>
        <!--mybatis与spring集成jar依赖-->
        <mybatis.spring.version>1.3.1</mybatis.spring.version>
        <!--3.dbcp2连接池相关 druid-->
        <commons.dbcp2.version>2.1.1</commons.dbcp2.version>
        <commons.pool2.version>2.4.3</commons.pool2.version>
        <!--4.log日志相关-->
        <log4j2.version>2.9.1</log4j2.version>
        <!--5.其他-->
        <junit.version>4.12</junit.version>
        <servlet.version>4.0.0</servlet.version>
        <lombok.version>1.18.2</lombok.version>
    </properties>
 
    <dependencies>
        <!--1.spring相关-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>