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1.MybatisPlus配置类
导入依赖
xml
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
</dependency>
java
package com.jerry.common.config.mp;
import com.baomidou.mybatisplus.annotation.DbType;
import com.baomidou.mybatisplus.autoconfigure.ConfigurationCustomizer;
import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
/**
* ClassName: MybatisPlusConfig
* Package: com.jerry.common.config.mp
* Description:
*
* @Author gaoziman
* @Create 2023-03-01 11:17
* @Version 1.0
*/
@Configuration
@MapperScan("com.jerry.auth.mapper")
public class MybatisPlusConfig {
/**
* 新的分页插件,一缓和二缓遵循mybatis的规则,需要设置 MybatisConfiguration#useDeprecatedExecutor = false 避免缓存出现问题(该属性会在旧插件移除后一同移除)
*/
@Bean
public MybatisPlusInterceptor mybatisPlusInterceptor() {
MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL));
return interceptor;
}
@Bean
public ConfigurationCustomizer configurationCustomizer() {
return configuration -> configuration.setUseDeprecatedExecutor(false);
}
} 2.使用mybatisplus分页查询
第一种
java
/**
* 条件分页查询
*
* @param page 当前页
* @param pageSize 分页大小
* @param sysRoleQueryVo 条件查询对象
* @return
*/
@ApiOperation("条件分页查询")
@GetMapping("{page}/{pageSize}")
private Result page(@PathVariable int page, @PathVariable int pageSize, SysRoleQueryVo sysRoleQueryVo) {
// 1、创建 page 对象， 传递分页查询的参数
Page<SysRole> sysRolePage = new Page<>(page, pageSize);
// 2、构造分页查询条件, 判断条件是否为空，不为空进行封装
LambdaQueryWrapper<SysRole> lambdaQueryWrapper = new LambdaQueryWrapper<>();
String roleName = sysRoleQueryVo.getRoleName();
if (!StringUtils.isEmpty(roleName)) {
// 封装
lambdaQueryWrapper.like(SysRole::getRoleName,roleName);
}
// 3、调用方法实现分页查询
sysRoleService.page(sysRolePage, lambdaQueryWrapper);
return Result.ok(sysRolePage);
}第二种
java
@PreAuthorize("hasAuthority('bnt.sysUser.list')")
@ApiOperation("条件分页查询")
@GetMapping("/page/{pageNum}/{pageSize}")
public Result pageQueryUser(@PathVariable Long pageNum,
@PathVariable Long pageSize,
SysUserQueryVo sysUserQueryVo) {
//1 创建Page对象，传递分页相关参数
//page 当前页 limit 每页显示记录数
Page<SysUser> pageParam = new Page<>(pageNum,pageSize);
//2 调用service方法
IPage<SysUser> page = userService.selectByPage(pageParam,sysUserQueryVo);
return Result.success(page);
}
xml
<select id="selectByPage" resultMap="sysUserMap">
SELECT * FROM sys_user
<where>
<if test="vo.keyword != '' and vo.keyword != null ">
and (username like CONCAT('%',#{vo.keyword},'%')
or name like CONCAT('%',#{vo.keyword},'%')
or phone like CONCAT('%',#{vo.keyword},'%'))
</if>
<if test="vo.createTimeBegin != null and vo.createTimeBegin !=''">
and create_time >= #{vo.createTimeBegin}
</if>
<if test="vo.createTimeEnd !=null and vo.createTimeEnd !=''">
and create_time <=#{vo.createTimeEnd}
</if>
and is_deleted = 0
</where>
</select>3.统一返回的结果
java
package com.trs.common.result;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
/**
* 公共返回对象
*
* @author gaoziman
* @date 2022/8/7
*/
@Data
@NoArgsConstructor
@AllArgsConstructor
public class Result {
/**
* 状态码
*/
private Integer code;
/**
* 提示信息
*/
private String message;
/**
* 返回对象
*/
private Object data;
/**
* 成功返回结果
*
* @param resultCodeEnum 提示信息
* @return 返回成功
*/
public static Result success(ResultCodeEnum resultCodeEnum) {
return new Result(resultCodeEnum.getCode(), resultCodeEnum.getMessage(), null);
}
/**
* 成功返回结果
*
* @param resultCodeEnum 提示信息
* @param data 返回数据
* @return 返回成功
*/
public static Result success(ResultCodeEnum resultCodeEnum, Object data) {
return new Result(resultCodeEnum.getCode(), resultCodeEnum.getMessage(), data);
}
/**
* 失败返回结果
*
* @param resultCodeEnum 提示信息
* @return 返回失败
*/
public static Result error(ResultCodeEnum resultCodeEnum) {
return new Result(resultCodeEnum.getCode(), resultCodeEnum.getMessage(), null);
}
/**
* 失败返回结果
*
* @param message 提示信息
* @return 返回失败
*/
public static Result error(String message) {
return new Result(500, message, null);
}
/**
* 失败返回结果
*
* @param resultCodeEnum 提示信息
* @param data 返回数据
* @return 返回失败
*/
public static Result error(ResultCodeEnum resultCodeEnum, Object data) {
return new Result(resultCodeEnum.getCode(), resultCodeEnum.getMessage(), data);
}
/**
* 失败返回结果
*
* @param message 提示信息
* @return 返回失败
*/
public static Result error(ResultCodeEnum resultCodeEnum, String message) {
return new Result(resultCodeEnum.getCode(), resultCodeEnum.getMessage(), null);
}
/**
* 失败返回结果
*
* @param code 状态码
* @param message 提示信息
* @return 返回失败
*/
public static Result error(Integer code, String message) {
return new Result(code, message, null);
}
}
java
package com.trs.common.result;
import lombok.Getter;
/**
* 统一返回结果状态信息类
*
* @author 高自满
*/
@Getter
public enum ResultCodeEnum {
SUCCESS(200,"成功"),
FAIL(201, "失败"),
SERVICE_ERROR(2012, "服务异常"),
DATA_ERROR(204, "数据异常"),
LOGIN_AUTH(401, "尚未登录，请重新登录"),
PERMISSION(209, "没有权限"),
LOGIN_MOBLE_ERROR(210,"登录认证失败" ),
ACCOUNT_STOP(211,"账号已停用" ),
TOKEN_ERR(212,"token异常"),
PERMISSION_ERR(403,"权限不足，请联系管理员"),
COMMENT_SUCCESS(200,"评论成功，请等待管理员审核" ),
COMMENT_SUCCESS_S(200,"评论成功" ),
COMMENT_ERROR(501,"评论失败" );
private Integer code;
private String message;
private ResultCodeEnum(Integer code, String message) {
this.code = code;
this.message = message;
}
}4.Redis配置类
导入依赖
xml
<!-- Redis依赖 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
java
package com.trs.blog.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
/**
* Redis配置类
*
* @author : gaoziman
* @date 2023/5/2 10:32
*/
@Configuration
public class RedisConfig {
/**
* Redis序列化
*/
@Bean
public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
// String类型key序列器
redisTemplate.setKeySerializer(new StringRedisSerializer());
// String类型value序列器
redisTemplate.setValueSerializer(new GenericJackson2JsonRedisSerializer());
// Hash类型kay序列器
redisTemplate.setHashKeySerializer(new StringRedisSerializer());
// Hash类型value序列器
redisTemplate.setHashValueSerializer(new GenericJackson2JsonRedisSerializer());
// 设置连接工厂
redisTemplate.setConnectionFactory(redisConnectionFactory);
return redisTemplate;
}
}5.代码生成器
导入依赖
xml
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-generator</artifactId>
<version>3.4.1</version>
</dependency>
<dependency>
<groupId>org.apache.velocity</groupId>
<artifactId>velocity-engine-core</artifactId>
<version>2.0</version>
</dependency>
java
package com.trs.serviceUtil.util;
import com.baomidou.mybatisplus.annotation.DbType;
import com.baomidou.mybatisplus.generator.AutoGenerator;
import com.baomidou.mybatisplus.generator.config.DataSourceConfig;
import com.baomidou.mybatisplus.generator.config.GlobalConfig;
import com.baomidou.mybatisplus.generator.config.PackageConfig;
import com.baomidou.mybatisplus.generator.config.StrategyConfig;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;
/**
* @author gaoziman
* 代码生成器
*/
public class CodeGet {
public static void main(String[] args) {
// 1、创建代码生成器
AutoGenerator mpg = new AutoGenerator();
// 2、全局配置
// 全局配置
GlobalConfig gc = new GlobalConfig();
gc.setOutputDir("E:\\exer_code\\cisyam-blog\\blog-parent\\service-blog"+"/src/main/java");
gc.setServiceName("%sService"); //去掉Service接口的首字母I
gc.setAuthor("manman");
gc.setOpen(false);
mpg.setGlobalConfig(gc);
// 3、数据源配置
DataSourceConfig dsc = new DataSourceConfig();
dsc.setUrl("jdbc:mysql://localhost:3306/blog?serverTimezone=GMT%2B8&useSSL=false");
dsc.setDriverName("com.mysql.cj.jdbc.Driver");
dsc.setUsername("root");
dsc.setPassword("root");
dsc.setDbType(DbType.MYSQL);
mpg.setDataSource(dsc);
// 4、包配置
PackageConfig pc = new PackageConfig();
pc.setParent("com.trs");
pc.setModuleName("blog"); //模块名
pc.setController("controller");
pc.setService("service");
pc.setEntity("pojo");
pc.setMapper("mapper");
mpg.setPackageInfo(pc);
// 5、策略配置
StrategyConfig strategy = new StrategyConfig();
strategy.setInclude("week_view");
strategy.setNaming(NamingStrategy.underline_to_camel);//数据库表映射到实体的命名策略
strategy.setColumnNaming(NamingStrategy.underline_to_camel);//数据库表字段映射到实体的命名策略
strategy.setEntityLombokModel(true); // lombok 模型 @Accessors(chain = true) setter链式操作
strategy.setRestControllerStyle(true); //restful api风格控制器
strategy.setControllerMappingHyphenStyle(true); //url中驼峰转连字符
mpg.setStrategy(strategy);
// 6、执行
mpg.execute();
}
}6.工具类
拷贝工具类
java
package com.trs.blog.util;
import org.springframework.beans.BeanUtils;
import org.springframework.util.CollectionUtils;
import java.util.ArrayList;
import java.util.List;
/**
* 集合对象复制工具类
*
* @author gaoziman
* @date 2023/5/1 23:32
*/
public class BeanCopyUtil {
/**
* 复制集合
*
* @param source 复制的原对象集合
* @param clazz 对象类型
* @param <T> 泛型
* @return 复制完成的集合
*/
public static <T> List<T> copyList(List source, Class<T> clazz) {
List<T> target = new ArrayList<>();
if (!CollectionUtils.isEmpty(source)) {
if (!CollectionUtils.isEmpty(source)) {
for (Object c : source) {
T obj = copy(c, clazz);
target.add(obj);
}
}
}
return target;
}
/**
* 复制对象
*
* @param source 复制的原对象
* @param clazz 对象类型
* @param <T> 泛型
* @return 复制完成的新对象
*/
public static <T> T copy(Object source, Class<T> clazz) {
if (source == null) {
return null;
}
T obj = null;
try {
obj = clazz.newInstance();
} catch (Exception e) {
e.printStackTrace();
}
BeanUtils.copyProperties(source, obj);
return obj;
}
/**
* 将传来的Object对象转为指定的List集合
*
* @param object 传来的Object对象
* @param clazz 指定类型
* @param <T> 泛型
* @return 指定的List集合
*/
public static <T> List<T> castObjectToList(Object object, Class<T> clazz) {
List<T> result = new ArrayList<>();
// 如果传来的对象属于List集合
if (object instanceof List<?>) {
for (Object o : (List<T>) object) {
result.add(clazz.cast(o));
}
return result;
}
return null;
}
}集合工具类
java
package com.trs.blog.util;
import org.springframework.util.StringUtils;
import java.util.ArrayList;
import java.util.List;
/**
* 集合工具类
*
* @author gaoziman
* @date 2023/5/1 23:32
*/
public class CollectionUtil {
/**
* 将传来的字符串数据转为整型集合
*
* @param str 字符串数据
* @return 整型集合
*/
public static List<Integer> stringToIntegerList(String str) {
if (StringUtils.isEmpty(str)) {
return null;
}
// 去除字符串两边的[]
str = str.substring(1, str.length() - 1);
// 根据 , 进行分割
String[] split = str.split(",");
List<Integer> result = new ArrayList<>();
for (String s : split) {
result.add(Integer.parseInt(s));
}
return result;
}
}IP地址工具类
java
package com.trs.blog.util;
import com.alibaba.fastjson.JSON;
import eu.bitwalker.useragentutils.UserAgent;
import javax.servlet.http.HttpServletRequest;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.InetAddress;
import java.net.URL;
import java.net.UnknownHostException;
import java.util.List;
import java.util.Map;
import static com.trs.common.constant.CommonConst.LOCAL_HOST;
/**
* IP地址工具类
*
* @author gaoziman
* @date 2023/5/1 23:32
*/
public class IpUtil {
/**
* 获取当前IP地址以及IP所属源
*
* @return IP地址
*/
public static String getCurIpAddress(HttpServletRequest request) {
String ipAddress = null;
try {
ipAddress = request.getHeader("x-forwarded-for");
if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
ipAddress = request.getHeader("Proxy-Client-IP");
}
if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
ipAddress = request.getHeader("WL-Proxy-Client-IP");
}
if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
// 获取到本机的远程IP地址
ipAddress = request.getRemoteAddr();
if (LOCAL_HOST.equals(ipAddress)) {
// 根据网卡取本机配置的IP
InetAddress inet = null;
try {
inet = InetAddress.getLocalHost();
} catch (UnknownHostException e) {
e.printStackTrace();
}
ipAddress = inet.getHostAddress();
}
}
// 对于通过多个代理的情况，第一个IP为客户端真实IP,多个IP按照','分割
if (ipAddress != null && ipAddress.length() > 15) {
// = 15
if (ipAddress.indexOf(",") > 0) {
ipAddress = ipAddress.substring(0, ipAddress.indexOf(","));
}
}
} catch (Exception e) {
ipAddress = "";
}
return ipAddress;
}
/**
* 解析ip地址
*
* @param ipAddress ip地址
* @return 解析后的ip地址
*/
public static String getIpSource(String ipAddress) {
try {
URL url = new URL("http://opendata.baidu.com/api.php?query=" + ipAddress + "&co=&resource_id=6006&oe=utf8");
BufferedReader reader = new BufferedReader(new InputStreamReader(url.openConnection().getInputStream(), "utf-8"));
String line = null;
StringBuffer result = new StringBuffer();
while ((line = reader.readLine()) != null) {
result.append(line);
}
reader.close();
Map map = JSON.parseObject(result.toString(), Map.class);
List<Map<String, String>> data = (List) map.get("data");
return data.get(0).get("location");
} catch (Exception e) {
return "";
}
}
/**
* 获取用户的访问设备
*
* @param request 请求
* @return 用户访问设备
*/
public static UserAgent getUserAgent(HttpServletRequest request){
return UserAgent.parseUserAgentString(request.getHeader("User-Agent"));
}
}JWT处理Token工具类
java
package com.trs.blog.util;
import io.jsonwebtoken.Claims;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.SignatureAlgorithm;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.stereotype.Component;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
/**
* Jwt处理Token工具类
*
* @author gaoziman
* @date 2023/5/1 23:32
*/
@Component
public class JwtTokenUtil {
/**
* 用户名的key
*/
private static final String CLAIM_KEY_USERNAME = "sub";
/**
* JWT的创建时间
*/
private static final String CLAIM_KEY_CREATED = "created";
/**
* 秘钥
*/
@Value("${jwt.secret}")
private String secret;
/**
* token失效时间
*/
@Value("${jwt.expiration}")
private Long expiration;
/**
* 根据用户信息生成token
*
* @param userDetails 用户信息
* @return 生成的token
*/
public String generateToken(UserDetails userDetails) {
// 定义token中存储数据的载荷
Map<String, Object> claims = new HashMap<>();
// 1. 用户名
claims.put(CLAIM_KEY_USERNAME, userDetails.getUsername());
// 2. 签发时间
claims.put(CLAIM_KEY_CREATED, new Date());
// 签发token
return generateToken(claims);
}
/**
* 根据载荷生成token
*
* @param claims 载荷
* @return 生成的token
*/
private String generateToken(Map<String, Object> claims) {
return Jwts.builder()
// 1. 设置载荷
.setClaims(claims)
// 2. 设置失效时间
.setExpiration(generateExpirationDate())
// 3. 设置签名
.signWith(SignatureAlgorithm.HS512, secret)
// 签发token
.compact();
}
/**
* 生成token失效时间
*
* @return token的失效时间
*/
private Date generateExpirationDate() {
// token失效时间：当前系统时间 + 自己定义的时间
return new Date(System.currentTimeMillis() + expiration * 1000);
}
/**
* 从token中获取用户名
*
* @param token token
* @return 当前token中存储的用户名
*/
public String getUserNameFromToken(String token) {
String userName;
try {
// 从token中获取到载荷
Claims claims = getClaimsFromToken(token);
// 通过载荷获取到用户名
userName = claims.getSubject();
} catch (Exception e) {
// 如果出现异常则将 userName 设置为空
userName = null;
}
return userName;
}
/**
* 从token中获取载荷
*
* @param token token
* @return token中的载荷
*/
private Claims getClaimsFromToken(String token) {
Claims claims = null;
try {
claims = Jwts.parser()
// 解密的秘钥
.setSigningKey(secret)
.parseClaimsJws(token)
.getBody();
} catch (Exception e) {
e.printStackTrace();
}
return claims;
}
/**
* 判断token是否可以被刷新
*
* @param token token
* @return token是否可以被刷新
*/
public boolean canRefresh(String token) {
return !isTokenExpired(token);
}
/**
* 判断token是否失效
*
* @param token token
* @return 当前token是否失效
*/
private boolean isTokenExpired(String token) {
Date expiredDate = getExpiredDateFromToken(token);
// 如果失效时间是在当前时间之前肯定是失效的
return expiredDate.before(new Date());
}
/**
* 获取token中的失效时间
*
* @param token token
* @return 当前token中的失效时间
*/
private Date getExpiredDateFromToken(String token) {
// 从当前token中获取载荷
Claims claims = getClaimsFromToken(token);
// 从载荷中返回失效时间
return claims.getExpiration();
}
/**
* 刷新token
*
* @param token 用户携带的 token
* @return 刷新后的 token
*/
public String refreshToken(String token) {
// 从当前token中获取载荷
Claims claims = getClaimsFromToken(token);
// 更新载荷中的失效时间改成当前时间
claims.put(CLAIM_KEY_CREATED, new Date());
// 重新生成token
return generateToken(claims);
}
/**
* 判断token是否有效
*
* @param token 用户携带的 token
* @param userDetails 载荷
* @return token 是否有效
*/
public boolean validateToken(String token, UserDetails userDetails) {
// 通过token是否已经过期、荷载中的用户属性与userDetails中的用户属性是否一致
String userName = getUserNameFromToken(token);
return userName.equals(userDetails.getUsername()) && !isTokenExpired(token);
}
}时间转化工具类
java
package com.trs.blog.util;
import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.format.DateTimeFormatter;
import java.util.Date;
/**
* 时间转化工具类
*
* @author gaoziman
* @date 2023/5/1 23:32
*/
public class TimeUtil {
/**
* LocalDateTime 转 String
*
* @param time LocalDateTime
* @return 对应的字符串
*/
public static String localDateTimeToString(LocalDateTime time) {
return time.format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"));
}
/**
* 获取当前时间（字符串格式）
*
* @return 当前时间
*/
public static String getNowTime(){
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
return df.format(new Date());
}
/**
* 获取当前时间（字符串格式）
*
* @return 当前时间
*/
public static String getNowDate(){
SimpleDateFormat df = new SimpleDateFormat("MM-dd");
return df.format(new Date());
}
/**
* String 转 LocalDate
*
* @param time String
* @return LocalDate
*/
public static LocalDate stringToLocalDateDay(String time){
DateTimeFormatter df = DateTimeFormatter.ofPattern("yyyy-MM-dd");
return LocalDate.parse(time, df);
}
/**
* String 转 LocalDate
*
* @param time String
* @return LocalDate
*/
public static LocalDate stringToLocalDate(String time){
DateTimeFormatter df = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
return LocalDate.parse(time, df);
}
/**
* String 转 LocalDateTime
*
* @param time String
* @return LocalDateTime
*/
public static LocalDateTime stringToLocalDateTimeDay(String time){
// 先转LocalDate ===> 再转LocalDateTime
LocalDate localDate = stringToLocalDateDay(time);
return localDate.atTime(LocalTime.now());
}
/**
* String转LocalDateTime (yyyy-MM-dd HH:mm:ss格式)
*
* @param time String格式时间
* @return LocalDateTime
*/
public static LocalDateTime stringToLocalDateTime(String time){
// 先转LocalDate ===> 再转LocalDateTime
LocalDate localDate = stringToLocalDate(time);
return localDate.atTime(LocalTime.now());
}
/**
* LocalDate转String
*
* @param time LocalDate
* @return String
*/
public static String localDateToString(LocalDate time) {
return time.format(DateTimeFormatter.ofPattern("MM-dd"));
}
}UUID生成工具类
java
package com.trs.blog.util;
import java.util.UUID;
/**
* UUID生成工具类
*
* @author gaoziman
* @date 2023/5/1 23:32
*/
public class UuidUtil {
public static String[] chars = new String[]{"a", "b", "c", "d", "e", "f",
"g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s",
"t", "u", "v", "w", "x", "y", "z", "0", "1", "2", "3", "4", "5",
"6", "7", "8", "9", "A", "B", "C", "D", "E", "F", "G", "H", "I",
"J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V",
"W", "X", "Y", "Z"
};
/**
* 获取短UUID
*
* @return 16位UUID
*/
public static String getShortUuid() {
StringBuffer shortBuffer = new StringBuffer();
String uuid = UuidUtil.getUuid();
for (int i = 0; i < 8; i++) {
String str = uuid.substring(i * 4, i * 4 + 4);
int x = Integer.parseInt(str, 16);
// 对62取余
shortBuffer.append(chars[x % 0x3E]);
}
return shortBuffer.toString();
}
/**
* 获得32位UUID
*/
public static String getUuid() {
String uuid = UUID.randomUUID().toString();
//去掉"-"符号
return uuid.replaceAll("-", "");
}
}MD5工具类
java
package com.trs.common.util;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
public final class MD5 {
public static String encrypt(String strSrc) {
try {
char hexChars[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8',
'9', 'a', 'b', 'c', 'd', 'e', 'f' };
byte[] bytes = strSrc.getBytes();
MessageDigest md = MessageDigest.getInstance("MD5");
md.update(bytes);
bytes = md.digest();
int j = bytes.length;
char[] chars = new char[j * 2];
int k = 0;
for (int i = 0; i < bytes.length; i++) {
byte b = bytes[i];
chars[k++] = hexChars[b >>> 4 & 0xf];
chars[k++] = hexChars[b & 0xf];
}
return new String(chars);
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
throw new RuntimeException("MD5加密出错！！+" + e);
}
}
public static void main(String[] args) {
System.out.println(MD5.encrypt("123456"));
}
}
7.knife4j文档
引入依赖
java
<!--knife4j-->
<dependency>
<groupId>com.github.xiaoymin</groupId>
<artifactId>knife4j-spring-boot-starter</artifactId>
</dependency>
java
package com.trs.serviceUtil.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.ParameterBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.schema.ModelRef;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.service.Contact;
import springfox.documentation.service.Parameter;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2WebMvc;
import java.util.ArrayList;
import java.util.List;
/**
* knife4j配置信息
*/
@Configuration
@EnableSwagger2WebMvc
public class Knife4jConfig {
@Bean
public Docket adminApiConfig(){
List<Parameter> pars = new ArrayList<>();
ParameterBuilder tokenPar = new ParameterBuilder();
tokenPar.name("token")
.description("用户token")
.defaultValue("")
.modelRef(new ModelRef("string"))
.parameterType("header")
.required(false)
.build();
pars.add(tokenPar.build());
//添加head参数end
Docket adminApi = new Docket(DocumentationType.SWAGGER_2)
.groupName("adminApi")
.apiInfo(adminApiInfo())
.select()
//只显示admin路径下的页面
.apis(RequestHandlerSelectors.basePackage("com.trs"))
.paths(PathSelectors.regex("/.*"))
.build()
.globalOperationParameters(pars);
return adminApi;
}
private ApiInfo adminApiInfo(){
return new ApiInfoBuilder()
.title("后台管理系统-API文档")
.description("本文档描述了个人博客后台管理系统接口定义")
.version("1.0")
.contact(new Contact("manman", "http://manamn.space", "2942894660@qq.com"))
.build();
}
}8.文件上传
导入依赖
xml
<!-- 阿里云OSS文件上传开始 -->
<!-- 阿里云 OSS -->
<dependency>
<groupId>com.aliyun.oss</groupId>
<artifactId>aliyun-sdk-oss</artifactId>
<version>3.14.1</version>
</dependency>
<!--日期时间工具-->
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time</artifactId>
<version>2.10.14</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.4</version>
</dependency>
<!-- 阿里云OSS文件上传结束 -->
yml
#阿里云文件上传
aliyun:
oss:
endpoint: ************
keyid: ************
keysecret: ************
bucketname: ************配置类读取配置文件
java
package com.trs.demo.oss;
import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;
/**
* oss属性
*/
@Data
@Component
@ConfigurationProperties(prefix = "aliyun.oss")
public class OssProperties {
private String endPoint;
private String keyId;
private String keySecret;
private String bucketName;
}Controller
java
package com.trs.demo.controller;
import com.trs.demo.service.FileService;
import com.trs.demo.util.Result;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import javax.annotation.Resource;
@RestController
@RequestMapping("/oss/file")
public class OSSController {
@Resource
private FileService fileService;
/**
* 文件上传
*
* @param file
* @param module
* @return
*/
@PostMapping("/upload")
public Result upload(MultipartFile file, String module) {
//返回上传到oss的路径
String url = fileService.upload(file, module);
return Result.ok(url).message("文件上传成功");
}
}Service
java
package com.trs.demo.service.impl;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.trs.demo.oss.OssProperties;
import com.trs.demo.service.FileService;
import org.apache.commons.io.FilenameUtils;
import org.joda.time.DateTime;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;
import javax.annotation.Resource;
import java.io.IOException;
import java.io.InputStream;
import java.util.UUID;
/**
* @author : gaoziman
* @description :
* @date 2023/5/8 9:47
*/
@Service
public class FileServiceImpl implements FileService {
/**
* oss属性
*/
@Resource
private OssProperties ossProperties;
/**
* 文件上传
*
* @param file 文件上传对象
* @param module 文件夹名称
* @return {@link String}
*/
@Override
public String upload(MultipartFile file, String module) {
//获取地域节点
String endPoint = ossProperties.getEndPoint();
//获取AccessKeyId
String keyId = ossProperties.getKeyId();
//获取AccessKeySecret
String keySecret = ossProperties.getKeySecret();
//获取BucketName
String bucketName = ossProperties.getBucketName();
try {
//创建OSSClient实例
OSS ossClient = new OSSClientBuilder().build(endPoint, keyId,
keySecret);
//上传文件流
InputStream inputStream = file.getInputStream();
//获取旧名称
String originalFilename = file.getOriginalFilename();
//获取文件后缀名
String extension = FilenameUtils.getExtension(originalFilename);
//将文件名重命名
String newFileName = UUID.randomUUID().toString()
.replace("-", "") + "." + extension;
//使用当前日期进行分类管理
String datePath = new DateTime().toString("yyyy/MM/dd");
//构建文件名
newFileName = module + "/" + datePath + "/" + newFileName;
//调用OSS文件上传的方法
ossClient.putObject(bucketName, newFileName, inputStream);
//关闭OSSClient
ossClient.shutdown();
//返回文件地址
return "https://" + bucketName + "." + endPoint + "/" + newFileName;
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
/**
* 删除文件
*
* @param url url
*/
@Override
public void deleteFile(String url) {
//获取地域节点
String endPoint = ossProperties.getEndPoint();
//获取AccessKeyId
String keyId = ossProperties.getKeyId();
//获取AccessKeySecret
String keySecret = ossProperties.getKeySecret();
//获取BucketName
String bucketName = ossProperties.getBucketName();
try {
//创建OSSClient实例
OSS ossClient = new OSSClientBuilder().build(endPoint, keyId, keySecret);
//组装文件地址
String host = "https://" + bucketName + "." + endPoint + "/";
//获取文件名称
String objectName = url.substring(host.length());
//删除文件
ossClient.deleteObject(bucketName, objectName);
} catch (Exception e) {
e.printStackTrace();
}
}
}