diff --git a/.idea/AndroidProjectSystem.xml b/.idea/AndroidProjectSystem.xml
new file mode 100644
index 0000000..4a53bee
--- /dev/null
+++ b/.idea/AndroidProjectSystem.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="AndroidProjectSystem">
+    <option name="providerId" value="com.android.tools.idea.GradleProjectSystem" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
index 603e70a..f8809e4 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,5 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
+  <component name="EntryPointsManager">
+    <list size="1">
+      <item index="0" class="java.lang.String" itemvalue="org.apache.ibatis.type.MappedJdbcTypes" />
+    </list>
+  </component>
   <component name="ExternalStorageConfigurationManager" enabled="true" />
   <component name="FrameworkDetectionExcludesConfiguration">
     <file type="web" url="file://$PROJECT_DIR$/backend" />
diff --git a/backend/src/main/kotlin/com/github/sor2171/backend/service/WsTokenService.kt b/backend/src/main/kotlin/com/github/sor2171/backend/service/WsTokenService.kt
index 3515917..b381c9d 100644
--- a/backend/src/main/kotlin/com/github/sor2171/backend/service/WsTokenService.kt
+++ b/backend/src/main/kotlin/com/github/sor2171/backend/service/WsTokenService.kt
@@ -24,7 +24,7 @@ class WsTokenService(
         expireTime: Long? = null,
     ): Mono<String> {
         val token = UUID.randomUUID().toString()
-        val key = "$WS_REQUEST_TOKEN:${wsType.simpleName}:" + UUID.randomUUID().toString()
+        val key = "$WS_REQUEST_TOKEN:${wsType.simpleName}:$token"
         return template.opsForValue().set(
             key,
             "1",
diff --git a/backend/src/main/kotlin/com/github/sor2171/backend/service/v1/AuthorizationService.kt b/backend/src/main/kotlin/com/github/sor2171/backend/service/v1/AuthorizationService.kt
index 996b47b..da5e5e9 100644
--- a/backend/src/main/kotlin/com/github/sor2171/backend/service/v1/AuthorizationService.kt
+++ b/backend/src/main/kotlin/com/github/sor2171/backend/service/v1/AuthorizationService.kt
@@ -114,7 +114,7 @@ class AuthorizationService(
     }
 
     fun jwtTokenRelogin(headerToken: String?): Mono<ReloginVO>? {
-        val user = jwtUtils.resolveJwt(headerToken?.substring("Bearer ".length))
+        val user = jwtUtils.resolveJwt(headerToken)
             ?.let { jwtUtils.toUser(it) }
             ?: return null
         val accountMono = accountService.findAccountByName(user.username)
diff --git a/backend/src/test/kotlin/com/github/sor2171/backend/BackendApplicationTests.kt b/backend/src/test/kotlin/com/github/sor2171/backend/BackendApplicationTests.kt
index ab79936..20fff0e 100644
--- a/backend/src/test/kotlin/com/github/sor2171/backend/BackendApplicationTests.kt
+++ b/backend/src/test/kotlin/com/github/sor2171/backend/BackendApplicationTests.kt
@@ -1,15 +1,49 @@
 package com.github.sor2171.backend
 
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper
+import com.github.sor2171.backend.entity.dto.Account
+import com.github.sor2171.backend.mapper.AccountMapper
+import com.github.sor2171.backend.utils.DateUtils
 import org.junit.jupiter.api.Test
+import org.springframework.beans.factory.annotation.Autowired
 import org.springframework.boot.test.context.SpringBootTest
-import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder
+import org.springframework.security.crypto.password.PasswordEncoder
 
 @SpringBootTest
 class BackendApplicationTests {
 
+    @Autowired
+    private lateinit var passwordEncoder: PasswordEncoder
+
+    @Autowired
+    private lateinit var accountMapper: AccountMapper
+
     @Test
     fun contextLoads() {
-        println(BCryptPasswordEncoder().encode("123456"))
-    }
+        val rawPassword = "123456"
+        val encodedPassword = passwordEncoder.encode(rawPassword)
+        println("==================================================================")
+        println("Default password '$rawPassword' BCrypt hash: $encodedPassword")
+        println("==================================================================")
 
+        val queryWrapper = QueryWrapper<Account>().eq("username", "test")
+        val existingAccount = accountMapper.selectOne(queryWrapper)
+
+        if (existingAccount == null) {
+            val newAccount = Account(
+                id = null,
+                username = "test",
+                password = encodedPassword,
+                email = "1234567890@gmail.com",
+                role = "user",
+                registerTime = DateUtils.getCurrentDateTime()
+            )
+            accountMapper.insert(newAccount)
+            println("Created default test user 'test' in database (ID: ${newAccount.id}).")
+        } else {
+            val updatedAccount = existingAccount.copy(password = encodedPassword)
+            accountMapper.updateById(updatedAccount)
+            println("Existing test user 'test' found (ID: ${existingAccount.id}), updated password hash.")
+        }
+    }
 }
\ No newline at end of file