12: invokestatic #67 // Method com/zaxxer/hikari/proxy/ProxyFactory.getProxyPreparedStatement:(Lcom/zaxxer/hikari/proxy/ConnectionProxy;Ljava/sql/PreparedStatement;)Ljava/sql/PreparedStatement; 15: areturn 这里有三件事值得注意: getstatic 调用消失了。 invokevirtual 调用被替换为更容易由 JVM 优化的 invok...
if [ ! -x "$JAVA_HOME/bin/java" ]; then echo "Error: Java command not found at $JAVA_HOME/bin/java" exit 1 fi # Check if MAIN_CLASS is not empty if [ -z "$MAIN_CLASS" ]; then echo "Error: MAIN_CLASS is not defined. Please provide a valid main class." exit 1 fi [ -...
18.idea启动服务时报错Command line is too long idea启动时报错:Error running xxxxx. Command line is too long. Shorten the command line via JAR manifest or via a classpath file and rerun. 这里解决方法有两个: ①(推荐)在idea的启动configurations配置如图: ②在项目的.idea/workspace.xml文件中,找到<...
valid_lft forever preferred_lft forever # mycat用户登录Mycat root@ubuntu-mysql-master2:~# mysql -umycat -p123456 -h 192.168.110.145 -P8066 mysql: [Warning] Using a password on the command line interface can be insecure. ERROR 1045 (HY000): Access denied for user 'mycat' with host '1...
(11位首位不为0) * * * 匹配 : 0371-123456 或 (0371)1234567 或 (0371)12345678 或 010-123456 或 * 010-12345678 或 12345678912 * * * 不匹配: 1111-134355 或 0123456789 * */ public static final String PHONE_REGEXP = "^(?:0[0-9]{2,3}[-//s]{1}|//(0[0-9]{2,4}//))[0...
多线程同步的分类? 1.使用同步代码块? synchronized(同一个数据){ 可能会发生线程冲突问题 } privateObjectmutex=newObject();//自定义多线程同步锁 publicvoidsale() { synchronized(mutex) { if(trainCount> 0) { try{ Thread.sleep(10); }catch(Exceptione) { ...
// 以流方式提供Base64编码和解码// 附:"123"的base64编码为"MTIz"// 对输入流做base64编码InputStreamis=newByteArrayInputStream("123".getBytes());Base64InputStreamebis=newBase64InputStream(is,true);Stringenc=IOUtils.toString(ebis,"UTF-8");// MTIz// 对base64数据流做解码is =newByteArrayIn...
java-curl is a pure-java HTTP utility implemented based on HttpURLConnection in the standard JRE, while the usage references to the commonly-used CURL command line tool under Linux. Features Based on the standard JRE, the source compatibility level is 1.6, can be used on Java server-side, ...
, key2=User(name=summer, desc=null)}a ) 10、参数校验 对@ConfigurationProperties类使用Spring的@Valid注解时,Spring Boot就会尝试对其进行验证。 你可以直接在配置类上使用JSR-303 javax.validation约束注解。这个做法的前提是,你的类路径上有兼容的JSR-303实现: <dependency> <groupId>org.hibernate</gro...
Configuration property name dataSource is not valid: Invalid characters: S Bean: datasource Reason: Canonical names should be kebab-case (- separated), lowercase alpha-numeric characters and must start with a letter Action: Modify dataSource so that it conforms to the canonical names requirements....