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Commit fd9f082

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‎gh-1239/pom.xml‎

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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>org.mybatis.issues</groupId>
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<artifactId>gh-1239</artifactId>
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<packaging>jar</packaging>
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<version>0.0.1-SNAPSHOT</version>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
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<maven.compiler.source>1.8</maven.compiler.source>
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<maven.compiler.target>1.8</maven.compiler.target>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.apache.logging.log4j</groupId>
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<artifactId>log4j-core</artifactId>
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<version>2.7</version>
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</dependency>
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>4.12</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.hsqldb</groupId>
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<artifactId>hsqldb</artifactId>
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<version>2.3.4</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.mybatis</groupId>
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<artifactId>mybatis</artifactId>
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<version>3.4.6</version>
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</dependency>
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</dependencies>
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</project>
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/**
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* Copyright 2009-2015 the original author or authors. Licensed under the Apache License,
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* Version 2.0 (the "License"); you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless
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* required by applicable law or agreed to in writing, software distributed under the License is
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* distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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* or implied. See the License for the specific language governing permissions and limitations
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* under the License.
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*/
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package test;
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public interface Mapper {
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User getUser(Integer id);
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void insertUser(User user);
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}
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package test;
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import org.apache.ibatis.cache.CacheKey;
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import org.apache.ibatis.executor.Executor;
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import org.apache.ibatis.mapping.BoundSql;
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import org.apache.ibatis.mapping.MappedStatement;
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import org.apache.ibatis.plugin.*;
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import org.apache.ibatis.reflection.MetaObject;
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import org.apache.ibatis.reflection.SystemMetaObject;
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import org.apache.ibatis.session.ResultHandler;
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import org.apache.ibatis.session.RowBounds;
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import java.util.Properties;
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@Intercepts(
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@Signature(
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type = Executor.class,
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method = "query",
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//Cannot intercept the query method of 6 parameters now
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//This PR can solve this problem
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args = {MappedStatement.class, Object.class, RowBounds.class, ResultHandler.class, CacheKey.class, BoundSql.class}
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//The current version can only intercept the following method
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//args = {MappedStatement.class, Object.class, RowBounds.class, ResultHandler.class}
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)
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)
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public class QueryInterceptor implements Interceptor {
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@Override
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public Object intercept(Invocation invocation) throws Throwable {
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Object[] args = invocation.getArgs();
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//It is often necessary to use BoundSql in the interceptor, which is very inconvenient now.
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BoundSql boundSql = (BoundSql) args[5];
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//This is just a simple example and has no practical meaning.
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String newSql = boundSql.getSql().replace("*", "id, concat('test-', name) as name");
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MetaObject metaObject = SystemMetaObject.forObject(boundSql);
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//replace sql
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metaObject.setValue("sql", newSql);
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return invocation.proceed();
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}
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@Override
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public Object plugin(Object target) {
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return Plugin.wrap(target, this);
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}
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@Override
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public void setProperties(Properties properties) {
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}
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}
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/**
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* Copyright 2009-2015 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package test;
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import static org.junit.Assert.*;
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import java.io.Reader;
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import java.sql.Connection;
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import org.apache.ibatis.io.Resources;
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import org.apache.ibatis.jdbc.ScriptRunner;
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import org.apache.ibatis.session.SqlSession;
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import org.apache.ibatis.session.SqlSessionFactory;
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import org.apache.ibatis.session.SqlSessionFactoryBuilder;
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import org.junit.Assert;
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import org.junit.BeforeClass;
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import org.junit.Test;
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public class SimpleTest {
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private static SqlSessionFactory sqlSessionFactory;
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@BeforeClass
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public static void setUp() throws Exception {
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// create an SqlSessionFactory
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Reader reader = Resources.getResourceAsReader("test/mybatis-config.xml");
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sqlSessionFactory = new SqlSessionFactoryBuilder().build(reader);
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reader.close();
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// populate in-memory database
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SqlSession session = sqlSessionFactory.openSession();
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Connection conn = session.getConnection();
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reader = Resources.getResourceAsReader("test/CreateDB.sql");
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ScriptRunner runner = new ScriptRunner(conn);
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runner.setLogWriter(null);
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runner.runScript(reader);
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reader.close();
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session.close();
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}
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@Test
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public void shouldGetAUser() {
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SqlSession sqlSession = sqlSessionFactory.openSession();
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try {
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Mapper mapper = sqlSession.getMapper(Mapper.class);
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User user = mapper.getUser(1);
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Assert.assertEquals("test-User1", user.getName());
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} finally {
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sqlSession.close();
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}
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}
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}

‎gh-1239/src/test/java/test/User.java‎

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/**
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* Copyright 2009-2015 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package test;
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public class User {
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private Integer id;
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private String name;
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public Integer getId() {
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return id;
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}
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public void setId(Integer id) {
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this.id = id;
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}
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public String getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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}
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<?xml version="1.0" encoding="utf-8" ?>
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<Configuration>
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<Appenders>
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<Console name="stdout" target="SYSTEM_OUT">
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<PatternLayout pattern="%5p [%t] - %m%n" charset="utf-8" />
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</Console>
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</Appenders>
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<Loggers>
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<Root level="trace">
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<AppenderRef ref="stdout" />
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</Root>
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</Loggers>
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</Configuration>
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--
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-- Copyright 2009-2016 the original author or authors.
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--
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-- Licensed under the Apache License, Version 2.0 (the "License");
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-- you may not use this file except in compliance with the License.
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-- You may obtain a copy of the License at
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--
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-- http://www.apache.org/licenses/LICENSE-2.0
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--
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-- Unless required by applicable law or agreed to in writing, software
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-- distributed under the License is distributed on an "AS IS" BASIS,
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-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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-- See the License for the specific language governing permissions and
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-- limitations under the License.
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--
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drop table users if exists;
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create table users (
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id int,
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name varchar(20)
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);
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insert into users (id, name) values
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(1, 'User1'),
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(2, 'User2');
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<?xml version="1.0" encoding="UTF-8"?>
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<!--
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Copyright 2009-2016 the original author or authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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<!DOCTYPE mapper
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PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
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"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
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<mapper namespace="test.Mapper">
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<select id="getUser" resultType="test.User">
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select * from users where id = #{id}
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</select>
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<insert id="insertUser">
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insert into users (id, name) values (#{id}, #{name})
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</insert>
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</mapper>
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<?xml version="1.0" encoding="UTF-8" ?>
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<!--
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Copyright 2009-2016 the original author or authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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<!DOCTYPE configuration
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PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
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"http://mybatis.org/dtd/mybatis-3-config.dtd">
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<configuration>
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<plugins>
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<plugin interceptor="test.QueryInterceptor"></plugin>
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</plugins>
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<environments default="development">
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<environment id="development">
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<transactionManager type="JDBC">
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<property name="" value="" />
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</transactionManager>
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<dataSource type="UNPOOLED">
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<property name="driver" value="org.hsqldb.jdbcDriver" />
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<property name="url" value="jdbc:hsqldb:mem:mybatisissues" />
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<property name="username" value="sa" />
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</dataSource>
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</environment>
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</environments>
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<mappers>
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<mapper class="test.Mapper" />
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</mappers>
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</configuration>

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