Java Code Examples for cn.hutool.core.util.IdUtil#fastSimpleUUID()

@PostMapping("/register")
@ResponseBody
public ResultBean register(User user) {
    userService.checkUserNameExistOnCreate(user.getUsername());
    String activeCode = IdUtil.fastSimpleUUID();
    user.setActiveCode(activeCode);
    user.setStatus("0");

    HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
    String url = request.getScheme() + "://"
            + request.getServerName()
            + ":"
            + request.getServerPort()
            + "/active/"
            + activeCode;
    Context context = new Context();
    context.setVariable("url", url);
    String mailContent = templateEngine.process("mail/registerTemplate", context);
    new Thread(() ->
            mailService.sendHTMLMail(user.getEmail(), "Shiro-Action 激活邮件", mailContent))
            .start();

    // 注册后默认的角色, 根据自己数据库的角色表 ID 设置
    Integer[] initRoleIds = {2};
    return ResultBean.success(userService.add(user, initRoleIds));
}
 

/**
 * 导出excel
 */
public static void downloadExcel(List<Map<String, Object>> list, HttpServletResponse response) throws IOException {
    String tempPath =System.getProperty("java.io.tmpdir") + IdUtil.fastSimpleUUID() + ".xlsx";
    File file = new File(tempPath);
    BigExcelWriter writer= ExcelUtil.getBigWriter(file);
    // 一次性写出内容，使用默认样式，强制输出标题
    writer.write(list, true);
    //response为HttpServletResponse对象
    response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet;charset=utf-8");
    //test.xls是弹出下载对话框的文件名，不能为中文，中文请自行编码
    response.setHeader("Content-Disposition","attachment;filename=file.xlsx");
    ServletOutputStream out=response.getOutputStream();
    // 终止后删除临时文件
    file.deleteOnExit();
    writer.flush(out, true);
    //此处记得关闭输出Servlet流
    IoUtil.close(out);
}
 

/**
 * 导出excel
 */
public static void downloadExcel(List<Map<String, Object>> list, HttpServletResponse response) throws IOException {
    String tempPath =System.getProperty("java.io.tmpdir") + IdUtil.fastSimpleUUID() + ".xlsx";
    File file = new File(tempPath);
    BigExcelWriter writer= ExcelUtil.getBigWriter(file);
    // 一次性写出内容，使用默认样式，强制输出标题
    writer.write(list, true);
    //response为HttpServletResponse对象
    response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet;charset=utf-8");
    //test.xls是弹出下载对话框的文件名，不能为中文，中文请自行编码
    response.setHeader("Content-Disposition","attachment;filename=file.xlsx");
    ServletOutputStream out=response.getOutputStream();
    // 终止后删除临时文件
    file.deleteOnExit();
    writer.flush(out, true);
    //此处记得关闭输出Servlet流
    IoUtil.close(out);
}
 

@Test
public void saveUserList() {
    List<User> users = Lists.newArrayList();
    for (int i = 5; i < 15; i++) {
        String salt = IdUtil.fastSimpleUUID();
        User user = User.builder().name("testSave" + i).password(SecureUtil.md5("123456" + salt)).salt(salt).email("testSave" + i + "@xkcoding.com").phoneNumber("1730000000" + i).status(1).lastLoginTime(new DateTime()).createTime(new DateTime()).lastUpdateTime(new DateTime()).build();
        users.add(user);
    }
    userService.saveUserList(users);
    Assert.assertTrue(userService.getUserList().size() > 2);
}
 

/**
 * 测试保存
 */
@Test
public void testSave() {
    String salt = IdUtil.fastSimpleUUID();
    User testSave3 = User.builder().name("testSave3").password(SecureUtil.md5("123456" + salt)).salt(salt).email("[email protected]").phoneNumber("17300000003").status(1).lastLoginTime(new DateTime()).build();
    userDao.save(testSave3);

    Assert.assertNotNull(testSave3.getId());
    Optional<User> byId = userDao.findById(testSave3.getId());
    Assert.assertTrue(byId.isPresent());
    log.debug("【byId】= {}", byId.get());
}
 

@Test
public void saveUser() {
    String salt = IdUtil.fastSimpleUUID();
    User user = User.builder().name("testSave3").password(SecureUtil.md5("123456" + salt)).salt(salt).email("[email protected]").phoneNumber("17300000003").status(1).lastLoginTime(new DateTime()).createTime(new DateTime()).lastUpdateTime(new DateTime()).build();

    user = userService.saveUser(user);
    Assert.assertTrue(ObjectUtil.isNotNull(user.getId()));
    log.debug("【user】= {}", user);
}
 

/**
 * 测试Mybatis-Plus 批量新增
 */
@Test
public void testSaveList() {
    List<User> userList = Lists.newArrayList();
    for (int i = 4; i < 14; i++) {
        String salt = IdUtil.fastSimpleUUID();
        User user = User.builder().name("testSave" + i).password(SecureUtil.md5("123456" + salt)).salt(salt).email("testSave" + i + "@xkcoding.com").phoneNumber("1730000000" + i).status(1).lastLoginTime(new DateTime()).build();
        userList.add(user);
    }
    boolean batch = userService.saveBatch(userList);
    Assert.assertTrue(batch);
    List<Long> ids = userList.stream().map(User::getId).collect(Collectors.toList());
    log.debug("【userList#ids】= {}", ids);
}
 

/**
 * 测试通用Mapper - 保存
 */
@Test
public void testInsert() {
    String salt = IdUtil.fastSimpleUUID();
    User testSave3 = User.builder().name("testSave3").password(SecureUtil.md5("123456" + salt)).salt(salt).email("[email protected]").phoneNumber("17300000003").status(1).lastLoginTime(new DateTime()).createTime(new DateTime()).lastUpdateTime(new DateTime()).build();
    userMapper.insertUseGeneratedKeys(testSave3);
    Assert.assertNotNull(testSave3.getId());
    log.debug("【测试主键回写#testSave3.getId()】= {}", testSave3.getId());
}
 

/**
 * 测试保存
 */
@Test
public void saveUser() {
    String salt = IdUtil.fastSimpleUUID();
    User user = User.builder().name("testSave3").password(SecureUtil.md5("123456" + salt)).salt(salt).email("[email protected]").phoneNumber("17300000003").status(1).lastLoginTime(new DateTime()).createTime(new DateTime()).lastUpdateTime(new DateTime()).build();
    int i = userMapper.saveUser(user);
    Assert.assertEquals(1, i);
}
 

/**
 * 测试通用Mapper - 保存
 */
@Test
public void testInsert() {
    String salt = IdUtil.fastSimpleUUID();
    User testSave3 = User.builder().name("testSave3").password(SecureUtil.md5("123456" + salt)).salt(salt).email("[email protected]").phoneNumber("17300000003").status(1).lastLoginTime(new DateTime()).createTime(new DateTime()).lastUpdateTime(new DateTime()).build();
    userMapper.insertUseGeneratedKeys(testSave3);
    Assert.assertNotNull(testSave3.getId());
    log.debug("【测试主键回写#testSave3.getId()】= {}", testSave3.getId());
}
 

@Test
public void saveUserList() {
    List<User> users = Lists.newArrayList();
    for (int i = 5; i < 15; i++) {
        String salt = IdUtil.fastSimpleUUID();
        User user = User.builder().name("testSave" + i).password(SecureUtil.md5("123456" + salt)).salt(salt).email("testSave" + i + "@xkcoding.com").phoneNumber("1730000000" + i).status(1).lastLoginTime(new DateTime()).createTime(new DateTime()).lastUpdateTime(new DateTime()).build();
        users.add(user);
    }
    userService.saveUserList(users);
    Assert.assertTrue(userService.getUserList().size() > 2);
}
 

/**
 * 测试Mybatis-Plus 新增
 */
@Test
public void testSave() {
    String salt = IdUtil.fastSimpleUUID();
    User testSave3 = User.builder().name("testSave3").password(SecureUtil.md5("123456" + salt)).salt(salt).email("[email protected]").phoneNumber("17300000003").status(1).lastLoginTime(new DateTime()).build();
    boolean save = userService.save(testSave3);
    Assert.assertTrue(save);
    log.debug("【测试id回显#testSave3.getId()】= {}", testSave3.getId());
}
 

/**
 * 初始化10条数据
 */
private void initData() {
    List<User> userList = Lists.newArrayList();
    for (int i = 0; i < 10; i++) {
        String salt = IdUtil.fastSimpleUUID();
        int index = 3 + i;
        User user = User.builder().name("testSave" + index).password(SecureUtil.md5("123456" + salt)).salt(salt).email("testSave" + index + "@xkcoding.com").phoneNumber("1730000000" + index).status(1).lastLoginTime(new DateTime()).build();
        userList.add(user);
    }
    userDao.saveAll(userList);
}
 

/**
 * 测试保存
 */
@Test
public void testSave() {
    String salt = IdUtil.fastSimpleUUID();
    User testSave3 = User.builder().name("testSave3").password(SecureUtil.md5("123456" + salt)).salt(salt).email("[email protected]").phoneNumber("17300000003").status(1).lastLoginTime(new DateTime()).build();
    userDao.save(testSave3);

    Assert.assertNotNull(testSave3.getId());
    Optional<User> byId = userDao.findById(testSave3.getId());
    Assert.assertTrue(byId.isPresent());
    log.debug("【byId】= {}", byId.get());
}
 

/**
 * 初始化10条数据
 */
private void initData() {
    List<User> userList = Lists.newArrayList();
    for (int i = 0; i < 10; i++) {
        String salt = IdUtil.fastSimpleUUID();
        int index = 3 + i;
        User user = User.builder().name("testSave" + index).password(SecureUtil.md5("123456" + salt)).salt(salt).email("testSave" + index + "@xkcoding.com").phoneNumber("1730000000" + index).status(1).lastLoginTime(new DateTime()).build();
        userList.add(user);
    }
    userDao.saveAll(userList);
}
 

/**
 * 测试Mybatis-Plus 新增
 */
@Test
public void testSave() {
    String salt = IdUtil.fastSimpleUUID();
    User testSave3 = User.builder().name("testSave3").password(SecureUtil.md5("123456" + salt)).salt(salt).email("[email protected]").phoneNumber("17300000003").status(1).lastLoginTime(new DateTime()).build();
    boolean save = userService.save(testSave3);
    Assert.assertTrue(save);
    log.debug("【测试id回显#testSave3.getId()】= {}", testSave3.getId());
}
 

@Test
public void saveUser() {
    String salt = IdUtil.fastSimpleUUID();
    User user = User.builder().name("testSave3").password(SecureUtil.md5("123456" + salt)).salt(salt).email("[email protected]").phoneNumber("17300000003").status(1).lastLoginTime(new DateTime()).createTime(new DateTime()).lastUpdateTime(new DateTime()).build();

    user = userService.saveUser(user);
    Assert.assertTrue(ObjectUtil.isNotNull(user.getId()));
    log.debug("【user】= {}", user);
}
 

@Override
public Object run() {
    //链路追踪id
    String traceId = IdUtil.fastSimpleUUID();
    MDC.put(CommonConstant.LOG_TRACE_ID, traceId);
    RequestContext ctx = RequestContext.getCurrentContext();
    ctx.addZuulRequestHeader(CommonConstant.TRACE_ID_HEADER, traceId);
    return null;
}
 

@PerfTest(invocations = 200000000, threads = 16)
public void test1() throws Exception {
    IdUtil.fastSimpleUUID();
}
 

@Benchmark
public String hutoolFastSimpleUUID() {
	return IdUtil.fastSimpleUUID();
}