• SpringBoot学习笔记5-整合Email-文件上传-Neo4J-打包为war包

    二十九 SpringBoot整合Email

    以下演示的是简单邮件发送

    29.1 加入相关依赖　　　

     1           <dependency>
 2           <groupId>org.springframework.boot</groupId>
 3           <artifactId>spring-boot-starter-web</artifactId>  
 4        </dependency>
 5        
 6        <!-- Email依赖 -->
 7        <dependency>
 8                <groupId>org.springframework.boot</groupId>
 9                <artifactId>spring-boot-starter-mail</artifactId>
10        </dependency>
11        
12        <!-- freemarker的依赖 -->
13        <dependency>
14                <groupId>org.springframework.boot</groupId>
15                <artifactId>spring-boot-starter-freemarker</artifactId>
16        </dependency>
    相关依赖

    29.2 在全局配置文件中配置相关属性

    1 spring.mail.host=smtp.qq.com
2 spring.mail.username=your@qq.com
3 #授权码
4 spring.mail.password=
5 spring.mail.properties.mail.smtp.auth=true
6 spring.mail.properties.mail.smtp.starttls.enable=true
7 spring.mail.properties.mail.smtp.starttls.required=true
    application.properties

    29.3 service层

     1 package com.wu.service;
 2 
 3 import java.io.File;
 4 
 5 public interface EmailService {
 6     //发送简单的邮件
 7     public void sendSimpleEmailService(String sendTo,String title,String content);
 8     
 9     //发送带有附件的邮件
10     public void sendAttachmentMail(String sendTo,String title,String content,File file);
11     
12     //发送模板邮件
13     public void sendTemplateEmailService(String sendTo,String title,String content);
14 }
    EmailService.java
     1 package com.wu.service;
 2 
 3 import java.io.File;
 4 import java.util.HashMap;
 5 import java.util.Map;
 6 
 7 import javax.mail.MessagingException;
 8 import javax.mail.internet.MimeMessage;
 9 
10 import org.springframework.beans.factory.annotation.Autowired;
11 import org.springframework.beans.factory.annotation.Value;
12 import org.springframework.core.io.FileSystemResource;
13 import org.springframework.mail.SimpleMailMessage;
14 import org.springframework.mail.javamail.JavaMailSender;
15 import org.springframework.mail.javamail.MimeMessageHelper;
16 import org.springframework.stereotype.Service;
17 import org.springframework.ui.freemarker.FreeMarkerTemplateUtils;
18 import org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer;
19 import freemarker.template.Template;
20 
21 @Service
22 public class EmailServiceImp implements EmailService {
23     @Autowired
24     private JavaMailSender sender;
25     
26     @Autowired
27     private FreeMarkerConfigurer fc;
28     
29     @Value("${spring.mail.username}")
30     private String sendFrom;
31     
32     @Override
33     public void sendSimpleEmailService(String sendTo, String title, String content) {
34         SimpleMailMessage message=new SimpleMailMessage();
35         message.setFrom(sendFrom);
36         message.setTo(sendTo);
37         message.setSubject(title);
38         message.setText(content);
39         sender.send(message);
40     }
41 
42     @Override
43     public void sendAttachmentMail(String sendTo, String title, String content, File file) {
44         MimeMessage message=sender.createMimeMessage();
45         try {
46             MimeMessageHelper helper=new MimeMessageHelper(message,true);//true为设置为multipart模式
47             helper.setFrom(sendFrom);
48             helper.setTo(sendTo);
49             helper.setSubject(title);
50             helper.setText(content);
51             FileSystemResource fsResource=new FileSystemResource(file);
52             helper.addAttachment("这是一个附件",fsResource);
53             sender.send(message);
54         } catch (MessagingException e) {
55             e.printStackTrace();
56         }
57     }
58 
59     @Override
60     public void sendTemplateEmailService(String sendTo, String title, String content){
61         MimeMessage message=sender.createMimeMessage();
62         try {
63             MimeMessageHelper helper=new MimeMessageHelper(message,true);
64             helper.setTo(sendTo);
65             helper.setFrom(sendFrom);
66             helper.setSubject(title);
67             
68             //封装模板数据
69             Map<String,Object> map=new HashMap<>();
70             map.put("username","工具人");
71             
72             
73             //得到模板并将数据加入到模板中
74             Template template = fc.getConfiguration().getTemplate(content);
75             String html = FreeMarkerTemplateUtils.processTemplateIntoString(template, map);
76             
77             //封装邮件模板
78             helper.setText(html);
79             
80             //发送邮件
81             sender.send(message);
82         } catch (Exception e) {
83             e.printStackTrace();
84         }
85     }
86     
87 }
    EmailServiceImp.java

    29.4 controller层

     1 package com.wu.controller;
 2 
 3 import java.io.File;
 4 
 5 import org.springframework.beans.factory.annotation.Autowired;
 6 import org.springframework.web.bind.annotation.RequestMapping;
 7 import org.springframework.web.bind.annotation.RestController;
 8 import com.wu.service.EmailService;
 9 
10 @RestController
11 public class EmailController {
12     @Autowired
13     private EmailService service;
14      
15     //发送简单邮件
16     @RequestMapping("/sendSimpleEmail")
17     public String sendSimpleEmail(){
18         service.sendSimpleEmailService("toSend@gmail.com","这是一个测试","请忽略！");
19         return "success";
20     }
21     
22     //发送带有附件的邮件
23     @RequestMapping("/sendAttachmentEmail")
24     public String sendAttachmentEmail(){
25         File file=new File("src/main/resources/static/test.txt");
26         service.sendAttachmentMail("toSend@gmail.com","这也是一个测试","请忽略",file);
27         return "success again";
28     }
29     
30     //发送模板邮件
31     @RequestMapping("/sendTemplateEmailService")
32     public String sendTemplateEmailService(){
33         service.sendTemplateEmailService("toSend@gmail.com","这是模板邮件","info.html");
34         return "success again again";
35     }
36 }
    EmailController.java 

    三十 SpringBoot实现文件上传

     30.1 相关依赖

     1           <dependency>
 2           <groupId>org.springframework.boot</groupId>
 3           <artifactId>spring-boot-starter-web</artifactId>  
 4        </dependency>
 5        
 6        <!-- Thymeleaf模板 -->
 7        <dependency>
 8           <groupId>org.springframework.boot</groupId>
 9           <artifactId>spring-boot-starter-thymeleaf</artifactId>  
10        </dependency>
    依赖

    30.2  相关配置

    1 #单个文件大小
2 multipart.maxFileSize=50Mb
3 #接收的所有文件大小
4 multipart.maxRequestSize=500Mb
    application.properties

    30.3 Thymeleaf上传文件

     1 <!DOCTYPE html>
 2 <html>
 3 <head>
 4 <meta charset="UTF-8"/>
 5 <title>上传文件</title>
 6 </head>
 7 <body>
 8 <p>单个文件上传</p>
 9 <form action="/upload" enctype="multipart/form-data" method="post">
10     <input type="file" name="file"/><br></br>
11     <input type="submit" value="提交"/>
12 </form>
13 <hr></hr>
14 <p>批量文件上传</p>
15 <form action="/uploads" enctype="multipart/form-data" method="post">
16     <input type="file" name="file"/><br></br>
17     <input type="file" name="file"/><br></br>
18     <input type="file" name="file"/><br></br>
19     <input type="submit" value="提交"/>
20 </form>
21 </body>
22 </html>
    upload.html

    30.4 controller层

     1 package com.wu.controller;
 2 
 3 import java.io.File;
 4 import java.util.UUID;
 5 import javax.servlet.http.HttpServletRequest;
 6 import org.springframework.stereotype.Controller;
 7 import org.springframework.web.bind.annotation.RequestMapping;
 8 import org.springframework.web.bind.annotation.ResponseBody;
 9 import org.springframework.web.multipart.MultipartFile;
10 
11 @Controller
12 public class UploadController {
13     @RequestMapping("/index")
14     public String upload(){
15         return "upload";
16     }
17     
18     @ResponseBody
19     @RequestMapping("/upload")
20     public String uploadFile(MultipartFile file,HttpServletRequest request){
21         //路径
22         String dir = request.getServletContext().getRealPath("/upload");
23         File fileDir=new File(dir);
24         if(!fileDir.exists()){
25             fileDir.mkdir();
26         }
27         //文件名
28         String suffex = file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf("."));
29         String fileName=UUID.randomUUID().toString()+suffex;
30         File file2=new File(fileDir+fileName);
31         try {
32             file.transferTo(file2);
33         } catch (Exception e) {
34             e.printStackTrace();
35             return "上传失败";
36         } 
37         return "上传成功";
38     }
39     
40     @ResponseBody
41     @RequestMapping("/uploads")
42     public String uploadFiles(MultipartFile file[],HttpServletRequest request){
43         //路径
44         String dir = request.getServletContext().getRealPath("/upload");
45         File fileDir=new File(dir);
46         if(!fileDir.exists()){
47             fileDir.mkdir();
48         }
49         //文件名
50         for(int i=0;i<file.length;i++){
51             String suffex = file[i].getOriginalFilename().substring(file[i].getOriginalFilename().lastIndexOf("."));
52             String fileName=UUID.randomUUID().toString()+suffex;
53             File file2=new File(fileDir+fileName);
54             try {
55                 file[i].transferTo(file2);
56             } catch (Exception e) {
57                 e.printStackTrace();
58                 return "上传失败";
59             } 
60         }
61     
62         return "上传成功";
63     }
64 }
    UploadController.java

    30.5 结果显示

     三十一 Neo4J的介绍与安装

     31.0 简单介绍

    Neo4j是一个高性能的,NOSQL图形数据库，它将结构化数据存储在网络上而不是表中。它是一个嵌入式的、基于磁盘的、具备完全的事务特性的Java持久化引擎，但是它将结构化数据存储在网络(从数学角度叫做图)上而不是表中。Neo4j也可以被看作是一个高性能的图引擎，该引擎具有成熟数据库的所有特性。程序员工作在一个面向对象的、灵活的网络结构下而不是严格、静态的表中——但是他们可以享受到具备完全的事务特性、企业级的数据库的所有好处。（Neo4j的百度百科）

    具体可以参考： Neo4j教程

    31.1 windows下的安装

    可以自行下载较新版本哈，百度云下载：neo4j-community-3.5.5   提取码：yu3u

    31.2 启动运行

    1）在  neo4j-community-3.5.5conf  目录下修改neo4j.conf  文件，把 #dbms.connectors.default_listen_address=0.0.0.0 的 #  去掉，并保存文件

    2）通过dos命令 如：D:>cd BaiduNetdiskDownload eo4j-community-3.5.5in  在该目录下执行 neo4j.bat console 即可启动

    3）若显示 “powershell”不是内部或外部命令，也不是可运行的程序或批处理文件  则在系统环境变量的 Path 中加 C:WindowsSystem32WindowsPowerShellv1.0  若还是不行，重启电脑

    31.3 显示

    在浏览器中输入启动成功后给出的地址 http://localhost:7474/browser/   登录密码为neo4j,之后更改密码，最终界面如下：

    三十二 SpringBoot整合Neo4j

    32.1 添加相关依赖

     1            <dependency>
 2           <groupId>org.springframework.boot</groupId>
 3           <artifactId>spring-boot-starter-web</artifactId>  
 4        </dependency>
 5        
 6        <!-- SpringBoot整合Neo4j的依赖 -->
 7        <dependency>
 8                <groupId>org.springframework.boot</groupId>
 9                <artifactId>spring-boot-starter-data-neo4j</artifactId>
10        </dependency>
    依赖

    32.2 application.properties中的相关配置

    1 spring.data.neo4j.uri=http://localhost:7474
2 spring.data.neo4j.username=neo4j
3 spring.data.neo4j.password=
    Neo4j的相关配置

    32.3 编写实体类（包括节点和关系）

     1 package com.wu.pojo;
 2 
 3 import org.neo4j.ogm.annotation.GraphId;
 4 import org.neo4j.ogm.annotation.NodeEntity;
 5 import org.neo4j.ogm.annotation.Property;
 6 
 7 @NodeEntity(label="User")//将该节点加入到数据库中
 8 public class UserNode {
 9     @GraphId//图形id
10     private Long NodeId;
11     
12     @Property
13     private Long userId;
14     @Property
15     private String name;
16     @Property
17     private Integer age;
18     public Long getNodeId() {
19         return NodeId;
20     }
21     public void setNodeId(Long nodeId) {
22         NodeId = nodeId;
23     }
24     public Long getUserId() {
25         return userId;
26     }
27     public void setUserId(Long userId) {
28         this.userId = userId;
29     }
30     public String getName() {
31         return name;
32     }
33     public void setName(String name) {
34         this.name = name;
35     }
36     public Integer getAge() {
37         return age;
38     }
39     public void setAge(Integer age) {
40         this.age = age;
41     }
42     
43 }
    UserNode.java
     1 package com.wu.pojo;
 2 
 3 import org.neo4j.ogm.annotation.EndNode;
 4 import org.neo4j.ogm.annotation.GraphId;
 5 import org.neo4j.ogm.annotation.RelationshipEntity;
 6 import org.neo4j.ogm.annotation.StartNode;
 7 @RelationshipEntity(type="UserRelation")//将该关系加入到数据库中
 8 public class UserRelation {
 9     @GraphId//
10     private Long RelationId;
11     
12     @StartNode
13     private UserNode startUser;
14     
15     @EndNode
16     private UserNode endUser;
17 
18     public Long getRelationId() {
19         return RelationId;
20     }
21 
22     public void setRelationId(Long relationId) {
23         RelationId = relationId;
24     }
25 
26     public UserNode getStartUser() {
27         return startUser;
28     }
29 
30     public void setStartUser(UserNode startUser) {
31         this.startUser = startUser;
32     }
33 
34     public UserNode getEndUser() {
35         return endUser;
36     }
37 
38     public void setEndUser(UserNode endUser) {
39         this.endUser = endUser;
40     }
41     
42 }
    UserRelation.java

    32.4 编写dao层（映射）

     1 package com.wu.dao;
 2 
 3 import java.util.List;
 4 
 5 import org.springframework.data.neo4j.annotation.Query;
 6 import org.springframework.data.neo4j.repository.GraphRepository;
 7 import org.springframework.data.repository.query.Param;
 8 import org.springframework.stereotype.Component;
 9 
10 import com.wu.pojo.UserNode;
11 @Component//注入Spring
12 public interface UserRepository extends GraphRepository<UserNode>{
13     //根据用户节点查询
14     @Query("match (n:User) return n")
15     List<UserNode> getUserNodeList();
16     
17     //添加用户节点
18     @Query("create (n:User{age:{age},name:{name}}) return n")
19     List<UserNode> addUserNodeList(@Param("name") String name,@Param("age") int age);
20     
21 }
    UserRepository.java
     1 package com.wu.dao;
 2 
 3 import java.util.List;
 4 
 5 import org.springframework.data.neo4j.annotation.Query;
 6 import org.springframework.data.neo4j.repository.GraphRepository;
 7 import org.springframework.data.repository.query.Param;
 8 import org.springframework.stereotype.Component;
 9 
10 import com.wu.pojo.UserRelation;
11 @Component
12 public interface UserRelationRepository extends GraphRepository<UserRelation> {
13     //根据用户id查询对应关系
14      @Query("match p=(n:User)<-[r:UserRelation]->(n1:User) where n.userId={firstUserId} and n1.userId={secondUserId} return p")
15      List<UserRelation> findUserRelationByEachId(@Param("firstUserId") String firstUserId,@Param("secondUserId") String secondUserId);
16      
17      //创建关系
18      @Query("match (fu:User),(su:User) where fu.userId={firstUserId} and su.userId={secondUserId} create p=(fu)-[r:UserRelation]->(su) return p")
19      List<UserRelation> addUserRelation(@Param("firstUserId") Long firstUserId,@Param("secondUserId") Long secondUserId);
20      
21 }
    UserRelationRepository.java

    32.5 编写service层

     1 package com.wu.service;
 2 
 3 import java.util.List;
 4 import org.springframework.beans.factory.annotation.Autowired;
 5 import org.springframework.stereotype.Service;
 6 import com.wu.dao.UserRelationRepository;
 7 import com.wu.dao.UserRepository;
 8 import com.wu.pojo.UserNode;
 9 import com.wu.pojo.UserRelation;
10 
11 @Service
12 public class UserService {
13     @Autowired
14     private UserRepository userRepository;
15     @Autowired
16     private UserRelationRepository userRelationRepository;
17     
18     //添加用户节点
19     public void  addUserNode(UserNode userNode){
20         userRepository.addUserNodeList(userNode.getName(),userNode.getAge());
21     }
22     
23     //查询用户节点
24     public List<UserNode> getUserNodeList(){
25         return userRepository.getUserNodeList();
26     }
27     
28     //添加用户关系
29     public void addUserRelation(UserRelation userRelation){
30         userRelationRepository.addUserRelation(userRelation.getStartUser().getUserId(), userRelation.getEndUser().getUserId());
31     }
32 }
    UserService.java

    32.6 编写controller层

     1 package com.wu.controller;
 2 
 3 import org.springframework.beans.factory.annotation.Autowired;
 4 import org.springframework.web.bind.annotation.RequestMapping;
 5 import org.springframework.web.bind.annotation.RestController;
 6 import com.wu.pojo.UserNode;
 7 import com.wu.service.UserService;
 8 
 9 @RestController
10 public class UserController {
11     @Autowired
12     private UserService userService;
13     
14     @RequestMapping("/addUserNode")
15     public String addUserNode(){
16         UserNode userNode=new UserNode();
17         userNode.setNodeId(1l);
18         userNode.setUserId(1l);
19         userNode.setAge(13);
20         userNode.setName("用户1");
21         userService.addUserNode(userNode);
22         return "success";
23     }
24     
25     /*@RequestMapping("/addUserRelation")
26     public String addUserRelation(){
27         UserRelation userRelation=new UserRelation();
28         //查询用户为之添加关系
29         List<UserNode> userNodeList = userService.getUserNodeList();
30         userRelation.setRelationId(1l);
31         userRelation.setStartUser(userNodeList.get(0));
32         userRelation.setEndUser(userNodeList.get(1));
33         userService.addUserRelation(userRelation);
34         return "success";
35     }*/
36 }
    UserController.java

    32.7 结果

    三十三 打包为war包并发布到tomcat中

    33.1 创建maven工程时打包方式设为war

    33.2 添加以下依赖，打包时排除tomcat

     1       <dependency>
 2           <groupId>org.springframework.boot</groupId>
 3           <artifactId>spring-boot-starter-web</artifactId>
 4           <!-- 移除嵌入式tomcat插件 -->
 5           <exclusions>
 6               <exclusion>
 7                   <groupId>org.springframework.boot</groupId>
 8                   <artifactId>spring-boot-starter-tomcat</artifactId>
 9               </exclusion>
10           </exclusions>
11       </dependency>
12 
13       <dependency>
14             <groupId>org.springframework.boot</groupId>
15             <artifactId>spring-boot-starter-tomcat</artifactId>
16             <scope>provided</scope>
17        </dependency>
    相关依赖

    33.3 启动类的设置

    启动类继承 extends SpringBootServletInitializer  重写

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
    return builder.sources(启动类.class);
    }

    33.4 输入打包命令

    右击项目-->Run As-->Maven build-->Goals:clean package  --> Run

    作者：wuba
    出处：http://www.cnblogs.com/wuba/
    版权声明：本博客所有文章除特别声明外，均采用CC BY-NC-SA 4.0许可协议。转载请注明出处！
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  • 原文地址：https://www.cnblogs.com/wuba/p/11242656.html
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