flink开发maven idea配置_flink maven

作者：在线问答5 | 2024-06-26 21:23:51

踩

flink maven

我们在flink开发的过程中，在idea开发调试的过程中flink的一些依赖需要声明maven依赖范围为compile;而在flink程序开发完成打包发布的时候需要声明maven的依赖范围为provided，从而避免依赖冲突或者冗余的打包。这需要在idea开发调试环境和代码打包环境来回切换，以下配置可以很轻松的完成此功能。

pom.xml文件配置示例：

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.pony</groupId>
    <artifactId>flink-demo01</artifactId>
    <version>1.0-SNAPSHOT</version>

    <properties>
        <java.version>1.8</java.version>
        <maven.compiler.source>${java.version}</maven.compiler.source>
        <maven.compiler.target>${java.version}</maven.compiler.target>
        <flink.version>1.12.2</flink.version>
        <hadoop.version>2.7.3</hadoop.version>
        <scala.version>2.11</scala.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-streaming-java_2.11</artifactId>
            <version>${flink.version}</version>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-clients_2.11</artifactId>
            <version>${flink.version}</version>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-statebackend-rocksdb_2.11</artifactId>
            <version>${flink.version}</version>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-connector-kafka_2.11</artifactId>
            <version>${flink.version}</version>
            <scope>compile</scope>
        </dependency>

        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.25</version>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>1.7.25</version>
            <scope>provided</scope>
        </dependency>

        <!--<dependency>
    <groupId>org.apache.logging.log4j</groupId>
    <artifactId>log4j-core</artifactId>
    <version>2.15.0</version>
</dependency>
<dependency>
    <groupId>org.apache.logging.log4j</groupId>
    <artifactId>log4j-api</artifactId>
    <version>2.15.0</version>
</dependency>
&lt;!&ndash;用于与slf4j保持桥接&ndash;&gt;
<dependency>
    <groupId>org.apache.logging.log4j</groupId>
    <artifactId>log4j-slf4j-impl</artifactId>
    <version>2.15.0</version>
</dependency>-->

        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-shaded-hadoop-2-uber</artifactId>
            <version>2.7.5-9.0</version>
            <scope>provided</scope>
        </dependency>

        <!--为了能在本地IDE启动看到flinkwebUI-->
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-runtime-web_2.11</artifactId>
            <version>${flink.version}</version>
            <scope>provided</scope>
        </dependency>

    </dependencies>

    <build>
        <plugins>
            <!-- 编译插件 -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.6.0</version>
                <configuration>
                    <source>${java.version}</source>
                    <target>${java.version}</target>
                    <encoding>${project.build.sourceEncoding}</encoding>
                </configuration>
            </plugin>
            <!-- scala编译插 打包时注释掉-->
            <!--<plugin>
                <groupId>net.alchim31.maven</groupId>
                <artifactId>scala-maven-plugin</artifactId>
                <version>3.1.6</version>
                <configuration>
                    <scalaCompatVersion>2.11</scalaCompatVersion>
                    <scalaVersion>2.11.12</scalaVersion>
                    <encoding>UTF-8</encoding>
                </configuration>
                <executions>
                    <execution>
                        <id>compile-scala</id>
                        <phase>compile</phase>
                        <goals>
                            <goal>add-source</goal>
                            <goal>compile</goal>
                        </goals>
                    </execution>
                    <execution>
                        <id>test-compile-scala</id>
                        <phase>test-compile</phase>
                        <goals>
                            <goal>add-source</goal>
                            <goal>testCompile</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>-->
            <!-- 使用 maven-shade打包依賴（推荐）-->
            <!-- We use the maven-shade plugin to create a fat jar that contains all necessary dependencies. -->
            <!-- Change the value of <mainClass>...</mainClass> if your program entry point changes. -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>3.0.0</version>
                <executions>
                    <!-- Run shade goal on package phase -->
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <artifactSet>
                                <excludes>
                                    <exclude>org.apache.flink:force-shading</exclude>
                                    <exclude>com.google.code.findbugs:jsr305</exclude>
                                    <exclude>org.slf4j:*</exclude>
                                    <exclude>log4j:*</exclude>
                                </excludes>
                            </artifactSet>
                            <filters>
                                <filter>
                                    <!-- Do not copy the signatures in the META-INF folder.
                                    Otherwise, this might cause SecurityExceptions when using the JAR. -->
                                    <artifact>*:*</artifact>
                                    <excludes>
                                        <exclude>META-INF/*.SF</exclude>
                                        <exclude>META-INF/*.DSA</exclude>
                                        <exclude>META-INF/*.RSA</exclude>
                                    </excludes>
                                </filter>
                            </filters>
                            <transformers>
                                <transformer
                                        implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                    <mainClass>com.pony.watermark.StreamingWindowWatermarkKafkaNewApi</mainClass>
                                </transformer>
                            </transformers>
                            <!--  将“com.pony.kafka”重命名为“com.shade.kafka"-->
                            <relocations>
                                <relocation>
                                    <pattern>com.pony.kafka</pattern>
                                    <shadedPattern>com.shade.kafka</shadedPattern>
                                    <excludes>
                                        <exclude>com.pony.kafka.KeyedStateFunction</exclude>
                                        <exclude>com.pony.kafka.StreamingWithKafka*</exclude>
                                    </excludes>
                                </relocation>
                            </relocations>
                            <!-- 修改包的后缀名-->
                            <shadedArtifactAttached>true</shadedArtifactAttached>
                            <shadedClassifierName>pony-shade</shadedClassifierName>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
            <!-- 使用assembly打包依賴，打jar包插件(会包含所有依赖) -->
            <!--<plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-assembly-plugin</artifactId>
                <version>2.6</version>
                <configuration>
                    <descriptorRefs>
                        <descriptorRef>jar-with-dependencies</descriptorRef>
                    </descriptorRefs>
                    <archive>
                        <manifest>
                            &lt;!&ndash; 可以设置jar包的入口类(可选) &ndash;&gt;
                            <mainClass>xuwei.tech.streaming.SocketWindowWordCountJava</mainClass>
                        </manifest>
                    </archive>
                </configuration>
                <executions>
                    <execution>
                        <id>make-assembly</id>
                        <phase>package</phase>
                        <goals>
                            <goal>single</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>-->

        </plugins>
    </build>

    <profiles>
        <profile>
            <id>add-dependencies-for-IDEA</id>

            <activation>
                <property>
                    <name>idea.version</name>
                </property>
                <activeByDefault>true</activeByDefault>
            </activation>

            <dependencies>
                <dependency>
                    <groupId>org.apache.flink</groupId>
                    <artifactId>flink-streaming-java_2.11</artifactId>
                    <version>${flink.version}</version>
                </dependency>

                <dependency>
                    <groupId>org.apache.flink</groupId>
                    <artifactId>flink-clients_2.11</artifactId>
                    <version>${flink.version}</version>
                </dependency>

                <dependency>
                    <groupId>org.apache.flink</groupId>
                    <artifactId>flink-statebackend-rocksdb_2.11</artifactId>
                    <version>${flink.version}</version>
                </dependency>

                <!--https://ci.apache.org/projects/flink/flink-docs-release-1.4/dev/connectors/kafka.html-->
                <dependency>
                    <groupId>org.apache.flink</groupId>
                    <artifactId>flink-connector-kafka_2.11</artifactId>
                    <version>${flink.version}</version>
                </dependency>

                <dependency>
                    <groupId>org.slf4j</groupId>
                    <artifactId>slf4j-api</artifactId>
                    <version>1.7.25</version>
                </dependency>
                <dependency>
                    <groupId>org.slf4j</groupId>
                    <artifactId>slf4j-log4j12</artifactId>
                    <version>1.7.25</version>
                </dependency>
                <dependency>
                    <groupId>org.apache.flink</groupId>
                    <artifactId>flink-shaded-hadoop-2-uber</artifactId>
                    <version>2.7.5-9.0</version>
                </dependency>

                <!--为了能在本地IDE启动看到flinkwebUI-->
                <dependency>
                    <groupId>org.apache.flink</groupId>
                    <artifactId>flink-runtime-web_2.11</artifactId>
                    <version>${flink.version}</version>
                </dependency>
            </dependencies>
        </profile>
    </profiles>

</project>
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292

打包使用说明：

在idea开发调试的过程中，把Profiles的【add-dependencies-for-IDEA】勾选去掉，不使用【add-dependencies-for-IDEA】这个环境，如下图：

在这里插入图片描述打包：

shade打包的使用
打包结果：

在这里插入图片描述
idea开发使用说明：
需要勾选Profiles的【add-dependencies-for-IDEA】选项
注意： 需要重新加载maven依赖

否则会报错：
在这里插入图片描述

另外

编写flink jar包程序的依赖问题
在编写flink jar包程序时，一定要特别注意运行时存在的jar包，设置其依赖scope为provided，否则可能会有冲突。特别是在应用引用低版本flink库，而
镜像使用高版本时，应用可能不能平滑迁移。
同时，在idea中调试，又需要将其scope设置为compile，否则本地调试可能会有问题。
为了解决这个问题，可以在pom中使用profile区分，示例如下：

<properties>
...
<!-- components exist online scope define -->
<libs.online.scope>provided</libs.online.scope>
...
</properties>
<profiles>
<profile>
<id>add-dependencies-for-IDEA</id>
<activation>
<property>
<name>idea.maven.embedder.version</name>
</property>
</activation>
<properties>
<libs.online.scope>compile</libs.online.scope>
</properties>
</profile>
</profiles>
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19

之后，将在运行时存在的jar包的依赖按照如下方式设置即可，比如

<dependency>
<groupId>org.apache.flink</groupId>
<artifactId>flink-java</artifactId>
<version>${flink.version}</version>
<scope>${libs.online.scope}</scope>
</dependency>
1
2
3
4
5
6

声明：本文内容由网友自发贡献，不代表【wpsshop博客】立场，版权归原作者所有，本站不承担相应法律责任。如您发现有侵权的内容，请联系我们。转载请注明出处：https://www.wpsshop.cn/w/在线问答5/article/detail/760488