项目说明
老规矩，还是先看看项目的目录结构：
一、先引入pom文件
这里就只放了一点点代码（代码太长了）
<dependency> <groupId>commons-io</groupId> <artifactId>commons-io</artifactId> <version>2.4</version> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> </dependency> <dependency> <groupId>net.sf.json-lib</groupId> <artifactId>json-lib</artifactId> <version>2.4</version> <classifier>jdk15</classifier> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-thymeleaf --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</artifactId> <version>2.2.4.RELEASE</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.60</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency>二、创建对应的yml配置文件
spring:
profiles:
active: prodspring:
datasource: username: root password: root url: jdbc:mysql://localhost:3306/chat?useUnicode=true&characterEncoding=utf8&autoReconnect=true&useSSL=false&serverTimezone=UTC
driver-class-name: com.mysql.jdbc.Driver #指定数据源 type: com.alibaba.druid.pool.DruidDataSource
# 数据源其他配置 initialSize: 5
minIdle: 5
maxActive: 20
maxWait: 60000
timeBetweenEvictionRunsMillis: 60000
minEvictableIdleTimeMillis: 300000
validationQuery: SELECT 1
testWhileIdle: true
testOnBorrow: false
testOnReturn: false
poolPreparedStatements: true
# 配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙
filters: stat,log4j maxPoolPreparedStatementPerConnectionSize: 20
useGlobalDataSourceStat: true
connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500
thymeleaf: suffix: .html prefix: classpath: /templates/ cache: false
jackson: #返回的日期字段的格式 date-format: yyyy-MM-dd HH:mm:ss
time-zone: GMT+8
serialization: write-dates-as-timestamps: false # true 使用时间戳显示时间
http: multipart: max-file-size: 1000Mb
max-request-size: 1000Mb
#配置文件式开发mybatis: #全局配置文件的位置 config-location: classpath:mybatis/mybatis-config.xml
#所有sql映射配置文件的位置 mapper-locations: classpath:mybatis/mapper/**/*.xmlserver: session: timeout: 7200三、创建实体类
这里就不再多说了，有 Login,Userinfo,ChatMsg,ChatFriends
四、创建对应的mapper(即dao层)还有对应的mapper映射文件
（这里就举出了一个，不再多说）
public interface ChatFriendsMapper {
//查询所有的好友
List<ChatFriends> LookUserAllFriends(String userid);
//插入好友
void InsertUserFriend(ChatFriends chatFriends);
//判断是否加好友
Integer JustTwoUserIsFriend(ChatFriends chatFriends);
//查询用户的信息
Userinfo LkUserinfoByUserid(String userid);
}<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.chat.mapper.ChatFriendsMapper">
<select id="LookUserAllFriends" resultType="com.chat.bean.ChatFriends" parameterType="java.lang.String">
select userid,nickname,uimg from userinfo where userid in (select a.fuserid from chat_friends a where a.userid=#{userid}) </select>
<insert id="InsertUserFriend" parameterType="com.chat.bean.ChatFriends">
insert into chat_friends (userid, fuserid) value (#{userid},#{fuserid}) </insert>
<select id="JustTwoUserIsFriend" parameterType="com.chat.bean.ChatFriends" resultType="java.lang.Integer">
select id from chat_friends where userid=#{userid} and fuserid=#{fuserid} </select>
<select id="LkUserinfoByUserid" parameterType="java.lang.String" resultType="com.chat.bean.Userinfo">
select * from userinfo where userid=#{userid} </select>
</mapper>五、创建对应的业务类(即service)
（同样的业务层这里也就指出一个）
@Service
public class ChatFriendsService {
@Autowired
ChatFriendsMapper chatFriendsMapper; public List<ChatFriends> LookUserAllFriends(String userid){
return chatFriendsMapper.LookUserAllFriends(userid);
} public void InsertUserFriend(ChatFriends chatFriends){
chatFriendsMapper.InsertUserFriend(chatFriends); } public Integer JustTwoUserIsFriend(ChatFriends chatFriends){
return chatFriendsMapper.JustTwoUserIsFriend(chatFriends);
} public Userinfo LkUserinfoByUserid(String userid){
return chatFriendsMapper.LkUserinfoByUserid(userid);
}}六、创建对应的控制器
这里再说说项目的接口
(同样就只写一个)
@Controller
public class LoginCtrl {
@Autowired
LoginService loginService; @GetMapping("/")
public String tologin(){
return "user/login";
} /**
* 登陆
* */
@PostMapping("/justlogin")
@ResponseBody
public R login(@RequestBody Login login, HttpSession session){
login.setPassword(Md5Util.StringInMd5(login.getPassword())); String userid = loginService.justLogin(login); if(userid==null){
return R.error().message("账号或者密码错误");
} session.setAttribute("userid",userid);
return R.ok().message("登录成功");
}}七、创建对应的工具类以及自定义异常类
public class EmojiFilter {
private static boolean isEmojiCharacter(char codePoint) {
return (codePoint == 0x0) || (codePoint == 0x9) || (codePoint == 0xA)
|| (codePoint == 0xD)
|| ((codePoint >= 0x20) && (codePoint <= 0xD7FF))
|| ((codePoint >= 0xE000) && (codePoint <= 0xFFFD))
|| ((codePoint >= 0x10000) && (codePoint <= 0x10FFFF));
} @Test
public void testA(){
String s = EmojiFilter.filterEmoji("您好:smile:，你好啊");
System.out.println(s); }static String[] chars = {"0","1","2","3","4","5","6","7","8","9","a","b","c","d","e","f"};
/**
* 将普通字符串用md5加密，并转化为16进制字符串
* @param str
* @return
*/
public static String StringInMd5(String str) { // 消息签名（摘要）
MessageDigest md5 = null; try { // 参数代表的是算法名称
md5 = MessageDigest.getInstance("md5");
byte[] result = md5.digest(str.getBytes()); StringBuilder sb = new StringBuilder(32);
// 将结果转为16进制字符 0~9 A~F
for (int i = 0; i < result.length; i++) {
// 一个字节对应两个字符
byte x = result[i]; // 取得高位
int h = 0x0f & (x >>> 4);
// 取得低位
int l = 0x0f & x;
sb.append(chars[h]).append(chars[l]); } return sb.toString();
} catch (NoSuchAlgorithmException e) { throw new RuntimeException(e); } }public class TestUtil {
@Test
public void testA(){
String s = Md5Util.StringInMd5("123456");
System.out.println(s);
}}八、引入对应的静态资源文件（这个应该一开始就做的）
九、自定义一些配置并且注入到容器里面
@Configuration
public class DruidConfig { @ConfigurationProperties(prefix = "spring.datasource")
@Bean public DataSource druid(){ return new DruidDataSource();
} //配置Druid的监控 //1.配置要给管理后台的Servlet
@Bean public ServletRegistrationBean servletRegistrationBean(){ ServletRegistrationBean bean=new ServletRegistrationBean(new StatViewServlet(),"/druid/*");
Map<String,String> initParams=new HashMap<>(); initParams.put("loginUsername","admin");
initParams.put("loginPassword","admin233215");
initParams.put("allow","");//默认允许ip访问
initParams.put("deny","");
bean.setInitParameters(initParams); return bean;
} //2.配置一个监控的filter
@Bean public FilterRegistrationBean webStarFilter(){ FilterRegistrationBean bean=new FilterRegistrationBean(); bean.setFilter(new WebStatFilter()); Map<String,String> initParams=new HashMap<>(); initParams.put("exclusions","*.js,*.css,/druid/*");
bean.setInitParameters(initParams); bean.setUrlPatterns(Arrays.asList("/*"));
return bean;
}}@Configuration
public class MyConfig extends WebMvcConfigurerAdapter {
//配置一个静态文件的路径 否则css和js无法使用，虽然默认的静态资源是放在static下，但是没有配置里面的文件夹
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/static/**").addResourceLocations("classpath:/static/");
} @Bean public WebMvcConfigurerAdapter WebMvcConfigurerAdapter() { WebMvcConfigurerAdapter adapter = new WebMvcConfigurerAdapter() { @Override public void addResourceHandlers(ResourceHandlerRegistry registry) { //registry.addResourceHandler("/pic/**").addResourceLocations("file:D:/chat/");
registry.addResourceHandler("/pic/**").addResourceLocations("file:D:/idea_project/SpringBoot/Project/Complete&&Finish/chat/chatmsg/");
super.addResourceHandlers(registry);
} }; return adapter;
} @Override public void addInterceptors(InterceptorRegistry registry) { //注册TestInterceptor拦截器
InterceptorRegistration registration = registry.addInterceptor(new AdminInterceptor()); registration.addPathPatterns("/chat/*");
}}@Configuration
@EnableWebSocket
public class WebSocketConfig {
@Bean
public ServerEndpointExporter serverEndpointExporter() { return new ServerEndpointExporter();
}}十、进行测试
这是两个不同的用户
当然了，还可以进行语音，添加好友
今天的就写到这里吧！喜欢的话随手点个关注吧谢谢！