记录IDEA的各种坑
- 一、IDEA导致项目无法运行的bug
- 1、Failed to determine a suitable driver class
- 异常背景：
- 异常信息：
- 原因分析：
- 解决方案：
- 2、resources没加载为资源目录 或 Module 'xxx' is imported from Maven.Any changes made in its configuration may be lost after reimporting.
- 异常背景：
- 异常信息：
- 原因分析：
- 解决方案：
- 二、第三方对接的bug
- 1、No appropriate protocol (protocol is disabled or cipher suites are inappropriate)
- 异常背景：
- 异常信息：
- 原因分析：
- 解决方案：
- 三、关于jar包冲突的bug
- 1、An attempt was made to call a method that does not exist. The attempt was made from the following location: com.google.common.cache.CacheBuilder.maximumSize(CacheBuilder.java:435)
- 异常背景：
- 异常信息：
- 原因分析：
- 解决方案：
一、IDEA导致项目无法运行的bug
1、Failed to determine a suitable driver class
异常背景：
数据源配置正确、jar包无冲突、“上一次还能运行，这一次确不行”等。
异常信息：
Description:
Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.
Reason: Failed to determine a suitable driver class
Action:
Consider the following:
If you want an embedded database (H2, HSQL or Derby), please put it on the classpath.
If you have database settings to be loaded from a particular profile you may need to activate it (no profiles are currently active).原因分析：
IDEA打包时没有复制属性文件到target目录
错误示例：
正确示例：
解决方案：
执行 build > rebuild project; 随后[重启项目]
2、resources没加载为资源目录 或 Module ‘xxx’ is imported from Maven.Any changes made in its configuration may be lost after reimporting.
异常背景：
打开项目resources目录没有加载为资源目录。且自主设置报错。
异常信息：
Module 'xxx' is imported from Maven.Any changes made in its configuration may be lost after reimporting.原因分析：
资源项目为子module或因缓存问题IDEA未正确应用JDK
错误示例：
正确示例：
解决方案：
依次点击 File -> Project Structure -> Project 检查JDK 和下方 language level是否一致，如果一致尝试重新选择当前JDK版本，如果最下方Apply按钮变得可以点击则说明是IDEA缓存问题，点击Apply按钮即可。如果自己设置resources报错Module ‘xxx’ is imported from Maven.Any changes made in its configuration may be lost after reimporting。也是解决方案。
检查JDK 和下方 language level是否一致，如果一致尝试重新选择当前JDK版。
如果Apply按钮变得可以点击则说明是IDEA缓存问题，点击Apply按钮即可。
如果走到一步仍然没有正确识别，那么点击Project下方的Modules按钮。选择资源目录点击设置为Resoutrces并点击Apply按钮。
二、第三方对接的bug
1、No appropriate protocol (protocol is disabled or cipher suites are inappropriate)
异常背景：
微信支付 - 申请退款报错
异常信息：
No appropriate protocol (protocol is disabled or cipher suites are inappropriate)原因分析：
微信支付退款功能使用的协议被JDK禁用
解决方案：
1、更换对应版本JDK【强烈不推荐】
2、手动修改微信代码，不主动使用协议如：TLSv1
3、修改【JDK/JRE】配置文件：
如果是OPEN JDK需求修改 /etc/crypto-policies/back-ends/java.config 文件
如果是Oracle JDK需求修改【JDK/JRE】/lib/security/java.security 文件
jdk.tls.disabledAlgorithms=SSLv3, TLSv1, TLSv1.1, RC4, DES, MD5withRSA, \
DH keySize < 1024, EC keySize < 224, 3DES_EDE_CBC, anon, NULL, \
include jdk.disabled.namedCurves
-- 移除被禁止的协议，如：TLSv1三、关于jar包冲突的bug
1、An attempt was made to call a method that does not exist. The attempt was made from the following location: com.google.common.cache.CacheBuilder.maximumSize(CacheBuilder.java:435)
异常背景：
Spring Cloud 项目移除consul后启动失败
异常信息：
An attempt was made to call a method that does not exist. The attempt was made from the following location:
com.google.common.cache.CacheBuilder.maximumSize(CacheBuilder.java:435)
The following method did not exist:
com.google.common.base.Preconditions.checkState(ZLjava/lang/String;J)V
The method's class, com.google.common.base.Preconditions, is available from the following locations:
jar:file:/E:/repositorys/com/google/collections/google-collections/1.0/google-collections-1.0.jar!/com/google/common/base/Preconditions.class
jar:file:/E:/repositorys/com/google/guava/guava/28.2-android/guava-28.2-android.jar!/com/google/common/base/Preconditions.class
It was loaded from the following location:
file:/E:/repositorys/com/google/collections/google-collections/1.0/google-collections-1.0.jar
Action:
Correct the classpath of your application so that it contains a single, compatible version of com.google.common.base.Preconditions原因分析：
jar包冲突、consul中存在忽略或限制google-collections-1.0.jar注入的条件，或consul存在控制guava版本代码
解决方案：
1、通过idea自带工具检查依赖、找出引用的jar包做依赖排除
<exclusions>
<exclusion>
<groupId>com.google.collections</groupId>
<artifactId>google-collections</artifactId>
</exclusion>
</exclusions>
或
<exclusions>
<exclusion>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
</exclusion>
</exclusions>
