#
SPRING BOOT单元测试中，因为测试时可能对应的服务器地址不同于SIT等别的环境，通常会将这些地址放于application-sit.yaml中。
在单元测试的代码中用这个标签指定用哪个profile，如
@ActiveProfiles({"embedded-mongodb","test"})
但这样做法，由于@ActiveProfiles这个标签是final的，如果要测试别的profile，只能复制另一份单元测试代码，再改此标签。
比较灵活的做法是用default profile，default profile是如果没指定任何profile，则会默认用这个。在application-default.yaml中再指定需激活的profile。
spring:
profiles:
active: test,embedded-mongodb
如果要测试别的profile，可以指定环境变量的方式覆盖：
-Dspring.profiles.active=error,embedded-mongodb
为了安全起见，将application-default.yaml放在测试目录中：src\test\resources。
Setting default Spring profile for tests with override option
https://blog.inspeerity.com/spring/setting-default-spring-profile-for-tests-with-override-option/
接收数据的JAVA BEAN通常需要验证其中字段的正确性，如不准为空，符合EMAIL格式等。
JSR-303 Bean Validation则提供了这样的便捷。
只要在JAVA BEAN中需要验证的字段加@NotNull这种标签，然后在SERVISE中的输入参数中加@Valid标签，则就激活验证流程。
也可以编程的方式自己验证：
@MessageEndpoint
//@Validated
public class MqMessageCcdValidator {
private static final Logger LOGGER = LoggerFactory.getLogger(MqMessageCcdValidator.class);
@Autowired
private Validator validator;
@ServiceActivator
public MqMessage<CcdRequest> validate(/* @Valid */ Message<MqMessage<CcdRequest>> requestMessage) {
Set<ConstraintViolation<MqMessage<CcdRequest>>> set = validator.validate(requestMessage.getPayload());
if(CollectionUtils.isNotEmpty(set)) {
CompositeException compositeException = new CompositeException();
set.forEach(
constraintViolation -> {
LOGGER.info("{}", constraintViolation);
ReqInfoValidationException exception =
new ReqInfoValidationException(constraintViolation.getMessage());
compositeException.addException(exception);
}
);
throw new MessageHandlingException(requestMessage, compositeException);
}
return requestMessage.getPayload();
}
}
自定义验证规则
可用标签来做，以下为验证手机号的规则：
import static java.lang.annotation.RetentionPolicy.RUNTIME;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;
import javax.validation.Constraint;
import javax.validation.Payload;
import javax.validation.ReportAsSingleViolation;
import javax.validation.constraints.Pattern;
@Retention(RUNTIME)
@Target(value = { ElementType.FIELD, ElementType.PARAMETER, ElementType.ANNOTATION_TYPE })
@Constraint(validatedBy = {})
@ReportAsSingleViolation
@Pattern(regexp = "^1[3-9]\\d{9}$")
public @interface ChinaPhone {
String message() default "Invalid Chinese mobile No.";
Class<?>[] groups() default {};
Class<? extends Payload>[] payload() default {};
}
如果比较复杂的验证规则，则参见：
https://reflectoring.io/bean-validation-with-spring-boot/#implementing-a-custom-validatorHow to use Java Bean Validation in Spring Boot
https://nullbeans.com/how-to-use-java-bean-validation-in-spring-boot/Complete Guide to Validation With Spring Boot
https://reflectoring.io/bean-validation-with-spring-boot/Spring JMS Validate Messages using JSR-303 Bean Validation
https://memorynotfound.com/spring-jms-validate-messages-jsr-303-bean-validation/Spring REST Validation Example
https://mkyong.com/spring-boot/spring-rest-validation-example/
Spring Boot 整合 Bean Validation 校验数据
https://blog.csdn.net/wangzhihao1994/article/details/108403732
场景，餐厅：
- 食客下单，有饮品、食物、甜点
- 侍应接单，传送给厨房
- 厨房分三个子流程处理，即饮品、食物、甜点子流程
- 等待三个子流程处理完，合并成一份交付
- 如果厨房发现某食物欠缺，会通知侍应，展开错误处理，即通知食客更改食物，再交给厨房
- 侍应将交付品传送给食客
有一个主流程、三个子流程和一个聚合流程，聚合流程会聚合三个子流程的产物，通知主流程，再往下走。
并且主流程会感知子流程的错误，并会交给相应错误处理流程处理，且将结果再交给聚合流程。
对应SPRING INTEGRATION 的SCATTERGATHER模式：
@Bean
public IntegrationFlow scatterGatherAndExecutorChannelSubFlow(TaskExecutor taskExecutor) {
return f -> f
.scatterGather(
scatterer -> scatterer
.applySequence(true)
.recipientFlow(f1 -> f1.transform(p -> "Sub-flow#1"))
.recipientFlow(f2 -> f2
.channel(c -> c.executor(taskExecutor))
.transform(p -> {
throw new RuntimeException("Sub-flow#2");
})),
null,
s -> s.errorChannel("scatterGatherErrorChannel"));
}
@ServiceActivator(inputChannel = "scatterGatherErrorChannel")
public Message<?> processAsyncScatterError(MessagingException payload) {
return MessageBuilder.withPayload(payload.getCause().getCause())
.copyHeaders(payload.getFailedMessage().getHeaders())
.build();
}
https://github.com/adnanmamajiwala/spring-integration-sample/tree/master/dsl-scatter-gather/src/main/java/com/si/dsl/scattergatherhttps://docs.spring.io/spring-integration/docs/5.1.x/reference/html/#scatter-gather
当需要调用第三方HTTP接口时，别人的接口还没完成，可先根据接口定义文档，返回适当的数据，以便开发。
在LINUX上的部署结构为：
├── boot
│ ├── moco-runner-1.1.0-standalone.jar
│ └── .version
├── foo.json
├── logs
│ ├── back
│ └── moco.log
├── moco.sh
└── startup-moco.sh
.version文件：
/path/to/boot/moco-runner-1.1.0-standalone.jar 1.1.0
moco.sh
#!/usr/bin/env bash
# Ensure this file is executable via `chmod a+x moco`, then place it
# somewhere on your $PATH, like ~/bin. The rest of moco will be
# installed upon first run into the ~/.moco directory.
if [ `id -u` -eq 0 ] && [ "$MOCO_ROOT" = "" ]; then
echo "WARNING: You're currently running as root; probably by accident."
echo "Press control-C to abort or Enter to continue as root."
echo "Set MOCO_ROOT to disable this warning."
read _
fi
echo $*
#export MOCO_HOME="${
MOCO_HOME:
-"$HOME/.moco"}
"
export MOCO_HOME=$(cd `dirname $0`; cd boot; pwd)
VERSION_LOG_FILE="$MOCO_HOME/.version"
# Determine the Java command to use to start the JVM.
if [ -n "$JAVA_HOME" ] ; then
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD="$JAVA_HOME/jre/sh/java"
else
JAVACMD="$JAVA_HOME/bin/java"
fi
if [ ! -x "$JAVACMD" ] ; then
die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
else
JAVACMD="java"
which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
if [ "$HTTP_CLIENT" = "" ]; then
if type -p curl >/dev/null 2>&1; then
if [ "$https_proxy" != "" ]; then
CURL_PROXY="-x $https_proxy"
fi
HTTP_CLIENT="curl $CURL_PROXY -f -L -o"
else
HTTP_CLIENT="wget -O"
fi
fi
function download_failed_message {
echo "Failed to download $1"
echo "It's possible your HTTP client's certificate store does not have the"
echo "correct certificate authority needed. This is often caused by an"
echo "out-of-date version of libssl. Either upgrade it or set HTTP_CLIENT"
echo "to turn off certificate checks:
"
echo " export HTTP_CLIENT=\"wget --no-check-certificate -O\" # or"
echo " export HTTP_CLIENT=\"curl --insecure -f -L -o\""
echo "It's also possible that you're behind a firewall haven't yet"
echo "set HTTP_PROXY and HTTPS_PROXY."
}
function download {
$HTTP_CLIENT "$2.pending" "$1"
if [ $? == 0 ]; then
# TODO:
checksum
mv -f "$2.pending" "$2"
else
rm "$2.pending" 2> /dev/null
download_failed_message "$1"
exit 1
fi
}
function parse_tag {
tag_value=`grep "<$2>.*<.$2>" $1 | sed -e "s/^.*<$2/<$2/" | cut -f2 -d">"| cut -f1 -d"<"`
}
function parse_maven_metadata {
MOCO_METADATA_URL="http:
//repo1.maven.org/maven2/com/github/dreamhead/moco-runner/maven-metadata.xml"
MOCO_METADATA="/tmp/maven-metadata.xml"
download $MOCO_METADATA_URL $MOCO_METADATA
parse_tag $MOCO_METADATA latest
LATEST_VERSION=$tag_value
}
function parse_standalone_latest_url {
parse_maven_metadata
VERSION=${LATEST_VERSION%}
LATEST_MOCO_STANDALONE_JAR="moco-runner-$VERSION-standalone.jar"
MOCO_STANDLONE_URL="http://repo1.maven.org/maven2/com/github/dreamhead/moco-runner/$LATEST_VERSION/$LATEST_MOCO_STANDALONE_JAR"
}
function install {
echo "Install moco"
echo "Parse the latest version of moco"
parse_standalone_latest_url
echo "Download the latest moco:
$LATEST_VERSION"
MOCO_STANDALONE="$MOCO_HOME/$LATEST_MOCO_STANDALONE_JAR"
echo "$MOCO_STANDALONE $LATEST_VERSION" >> $VERSION_LOG_FILE
download $MOCO_STANDLONE_URL $MOCO_STANDALONE
}
function load_current_version {
read MOCO_STANDALONE CURRENT_VERSION < $VERSION_LOG_FILE
if [[ "$(uname)" -ne "Darwin" && "$(expr substr $(uname -s) 2 6)" == "CYGWIN" ]];then
MOCO_STANDALONE=`cygpath -m "$MOCO_STANDALONE"`
fi
}
function usage {
printf "
options:
help show help
start start server, e.g. moco start -p 12306 -c configfile.json
shutdown shutdown moco server
upgrade upgrade moco
"
}
if [ ! -e "$MOCO_HOME" ]
then
mkdir "$MOCO_HOME"
install
fi
if [ "$1" = "start" ]; then
echo "Starting
"
load_current_version
exec "$JAVACMD" -jar "$MOCO_STANDALONE" $*
elif [ "$1" = "http" ]; then
echo "Starting HTTP server"
load_current_version
exec "$JAVACMD" -jar "$MOCO_STANDALONE" $*
elif [ "$1" = "https" ]; then
echo "Starting HTTPS server"
load_current_version
exec "$JAVACMD" -jar "$MOCO_STANDALONE" $*
elif [ "$1" = "socket" ]; then
echo "Starting Socket server"
load_current_version
exec "$JAVACMD" -jar "$MOCO_STANDALONE" $*
elif [ "$1" = "shutdown" ]; then
echo "Shutting down server"
load_current_version
exec "$JAVACMD" -jar "$MOCO_STANDALONE" $*
elif [ "$1" = "upgrade" ]; then
echo "Check the new version"
parse_maven_metadata
load_current_version
if [ "$LATEST_VERSION" = "$CURRENT_VERSION" ]; then
echo "The current version of moco is the latest"
else
echo "Upgrading"
rm $VERSION_LOG_FILE
install
fi
elif [ "$1" = "version" ]; then
load_current_version
echo "Moco version: $CURRENT_VERSION"
elif [ "$1" = "help" ]; then
usage
else
usage
fi
这是根据GIT上的原始文件作的修改。
startup-moco.sh
CMD_PATH=$(cd `dirname $0`; pwd)
# 项目日志输出绝对路径
LOG_DIR=${CMD_PATH}"/logs"
LOG_FILE="moco.log"
LOG_PATH="${LOG_DIR}/${LOG_FILE}"
# 当前时间
NOW=`date +'%Y-%m-%m-%H-%M-%S'`
NOW_PRETTY=`date +'%Y-%m-%m %H:%M:%S'`
# 启动日志
STARTUP_LOG="================================================ ${NOW_PRETTY} ================================================\n"
# 日志备份目录
LOG_BACK_DIR="${LOG_DIR}/back/"
# 如果logs文件夹不存在,则创建文件夹
if [[ ! -d "${LOG_DIR}" ]]; then
mkdir "${LOG_DIR}"
fi
# 如果logs/back文件夹不存在,则创建文件夹
if [[ ! -d "${LOG_BACK_DIR}" ]]; then
mkdir "${LOG_BACK_DIR}"
fi
# 如果项目运行日志存在,则重命名备份
if [[ -f "${LOG_PATH}" ]]; then
mv ${LOG_PATH} "${LOG_BACK_DIR}/${APPLICATION}_back_${NOW}.log"
fi
# 创建新的项目运行日志
echo "" > ${LOG_PATH}
# 可支持多个json配置文件
$CMD_PATH/moco.sh http -p 8088 -g "${CMD_PATH}/root.json" > ${LOG_PATH} 2>&1 &
# 打印启动日志
echo -e ${STARTUP_LOG}
root.json
[
{
"context": "/service-a",
"include": "foo.json"
},
{
"context": "/service-b",
"include": "bar.json"
}
]
foo.json
[
{
"request": {
"method": "post",
"forms": {
"method": "uploadKycInfo"
}
},
"response": {
"json": {
"response": {
"subcode": "10000",
"submsg": "Success",
"sndDt": "20210121101800",
"remark": "上传验证基本信息",
"msgBody": {
"merOrdrNo": "A00120210121654321",
"retCode": "00000",
"retMsg": "成功/处理完成",
"remark": "上传详情或上传信息的简要描述"
}
},
"code": "0000",
"msg": "处理完成",
"sign": "DF2659FE3EB8184561135D9F55F5EF5"
}
}
}
]
访问路径：
http://ip:port/service-a/
https://github.com/dreamhead/moco/blob/master/moco-doc/apis.md
https://zhuanlan.zhihu.com/p/60076337 https://www.programmersought.com/article/68272293688/
有几个项目中，都需要将图片或者数字证书的文件转为Base64，昨天写代码的时候，发现在jdk8中本就含有关于Base64的API。
从此后不再需要其他的jar包来转换Base64了!!!
据说是JDK8加入的。
先是将文件转为Base64：
public String encryptToBase64(String filePath) {
if (filePath == null) {
return null;
}
try {
byte[] b = Files.readAllBytes(Paths.get(filePath));
return Base64.getEncoder().encodeToString(b);
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
Files、Paths类是JDK7里加入的，读取文件不再需要调用IO包里的FileInputStream，简单便捷。
字符串参数filePath是文件的路径。
首先是将文件读成二进制码，然后通过Base64.getEncoder().encodeToString()方法将二进制码转换为Base64值。
然后是将Base64转为文件：
public String decryptByBase64(String base64, String filePath) {
if (base64 == null && filePath == null) {
return "生成文件失败，请给出相应的数据。";
}
try {
Files.write(Paths.get(filePath), Base64.getDecoder().decode(base64),StandardOpenOption.CREATE);
} catch (IOException e) {
e.printStackTrace();
}
return "指定路径下生成文件成功！";
}
字符串参数base64指的是文件的Base64值，filePath是指的文件将要保存的位置。
通过Files.write()方法轻松将文件写入指定位置，不再调用FileOutStream方法。
第三个参数StandardOpenOption.CREATE是处理文件的方式，我设置的是不管路径下有或没有，都创建这个文件，有则覆盖。
在StandardOpenOption类中有很多参数可调用，不再累赘。
摘要: 2020年是最近历史上前所未有的一年。在过去的一百年中，人类没有经历过像COVID-19这样的全球性大流行。它影响了我们星球上的所有国家，部门和几乎所有个人。
好消息是，我们已经准备好疫苗，终于可以充满乐观和希望，迎接新的一年2021年。
2020年对于软件开发行业来说是重要的一年，在许多领域都取得了明显的突破。COVID-19大大加快了数字化转型，到2021年这种趋势将更加明显。
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HTTP1.1的链接，默认是长链接，不会主动关闭。
LINUX会默认保留链接5天再关闭。
建立HTTP链接其实也是调用TCL的协议去建立，包括开始的时候有三次握手，关闭的时候有四次握手。关闭链接双方都可以发起。
但这些链接可能会被防火墙关掉而不通知建立链接的双方，因此设置需设置链接的存活期。
使用httpClient的链接池时，要设置池中的链接存活期或设置存活策略。
检测存活期只在每次发送数据时，才检测取出的链接是否超过存活期，如超过则关闭。
设置存活期的策略：
import java.util.concurrent.TimeUnit;
import org.apache.http.HeaderElement;
import org.apache.http.HeaderElementIterator;
import org.apache.http.HttpResponse;
import org.apache.http.conn.ConnectionKeepAliveStrategy;
import org.apache.http.message.BasicHeaderElementIterator;
import org.apache.http.protocol.HTTP;
import org.apache.http.protocol.HttpContext;
import org.apache.http.util.Args;
public class MyConnectionKeepAliveStrategy implements ConnectionKeepAliveStrategy{
private int timeToLive;
private TimeUnit timeUnit;
public MyConnectionKeepAliveStrategy(int timeToLive, TimeUnit timeUnit) {
this.timeToLive = timeToLive;
this.timeUnit = timeUnit;
}
@Override
public long getKeepAliveDuration(final HttpResponse response, final HttpContext context) {
Args.notNull(response, "HTTP response");
final HeaderElementIterator it = new BasicHeaderElementIterator(
response.headerIterator(HTTP.CONN_KEEP_ALIVE));
while (it.hasNext()) {
final HeaderElement he = it.nextElement();
final String param = he.getName();
final String value = he.getValue();
if (value != null && param.equalsIgnoreCase("timeout")) {
try {
return Long.parseLong(value) * 1000;
} catch(final NumberFormatException ignore) {
//do nothing
}
}
}
return timeUnit.toMillis(timeToLive);
}
}
《HttpClient官方文档》2.6 连接维持存活策略
http://ifeve.com/httpclient-2-6/httpclient连接池管理，你用对了？
http://ifeve.com/http-connection-pool/HttpClient连接池的一些思考
https://zhuanlan.zhihu.com/p/85524697HTTP协议的Keep-Alive 模式
https://www.jianshu.com/p/49551bda6619
通常要用到取某个时间段内的数据，那么时间段要如何定义？
取2020-12-01这天的数据，"2020-12-01 00:00:00" <= time < "2020-12-02 00:00:00"。
apache common3中提供了相应的方法：
startDate = DateUtils.parseDate(startDateStr, DATE_PATTERN);
String endDateStr = args.getOptionValues(END_DATE).get(0);
endDate = DateUtils.parseDate(endDateStr, DATE_PATTERN);
//清零开始日期，返回类似2020-12-01 00:00:00
startDate = DateUtils.truncate(startDate, Calendar.DATE);
//取结束日期的上限，返回隔天的时间，2020-12-02 00:00:00
endDate = DateUtils.ceiling(endDate, Calendar.DATE);"。
apache common3中提供了相应的方法：