插件SelectSelectivePlugin测试用例

src/test/java/com/itfsw/mybatis/generator/plugins/CommentPluginTest.java

+/*
+ * Copyright (c) 2017.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.itfsw.mybatis.generator.plugins;
+
+/**
+ * ---------------------------------------------------------------------------
+ *
+ * ---------------------------------------------------------------------------
+ * @author: hewei
+ * @time:2017/6/29 13:29
+ * ---------------------------------------------------------------------------
+ */
+public class CommentPluginTest {
+}

src/test/java/com/itfsw/mybatis/generator/plugins/SelectSelectivePluginTest.java

+/*
+ * Copyright (c) 2017.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.itfsw.mybatis.generator.plugins;
+
+import com.itfsw.mybatis.generator.plugins.tools.AbstractShellCallback;
+import com.itfsw.mybatis.generator.plugins.tools.DBHelper;
+import com.itfsw.mybatis.generator.plugins.tools.ObjectUtil;
+import com.itfsw.mybatis.generator.plugins.tools.SqlHelper;
+import org.apache.ibatis.io.Resources;
+import org.apache.ibatis.session.SqlSession;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.mybatis.generator.api.MyBatisGenerator;
+import org.mybatis.generator.config.Configuration;
+import org.mybatis.generator.config.xml.ConfigurationParser;
+
+import java.io.IOException;
+import java.lang.reflect.Array;
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * ---------------------------------------------------------------------------
+ *
+ * ---------------------------------------------------------------------------
+ * @author: hewei
+ * @time:2017/6/29 13:34
+ * ---------------------------------------------------------------------------
+ */
+public class SelectSelectivePluginTest {
+    private DBHelper helper;
+
+    /**
+     * 初始化
+     * @throws IOException
+     * @throws SQLException
+     */
+    @Before
+    public void init() throws IOException, SQLException {
+        helper = DBHelper.getHelper("scripts/SelectSelectivePlugin/init.sql");
+    }
+
+    /**
+     * 测试生成的方法
+     * @throws Exception
+     */
+    @Test
+    public void testSelectByExampleSelective() throws Exception {
+        List<String> warnings = new ArrayList<>();
+        ConfigurationParser cp = new ConfigurationParser(warnings);
+        Configuration config = cp.parseConfiguration(Resources.getResourceAsStream("scripts/SelectSelectivePlugin/mybatis-generator.xml"));
+
+        MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config, new AbstractShellCallback(true) {
+            @Override
+            public void reloadProject(ClassLoader loader) {
+                SqlSession sqlSession = null;
+                try {
+                    // 1. 测试sql
+                    sqlSession = helper.getSqlSession();
+                    ObjectUtil tbMapper = new ObjectUtil(sqlSession.getMapper(loader.loadClass("com.itfsw.mybatis.generator.plugins.dao.TbMapper")));
+
+                    ObjectUtil tbExample = new ObjectUtil(loader, "com.itfsw.mybatis.generator.plugins.dao.model.TbExample");
+                    ObjectUtil criteria = new ObjectUtil(tbExample.invoke("createCriteria"));
+                    criteria.invoke("andIdLessThan", 100);
+                    tbExample.set("orderByClause", "field2 asc");
+
+                    ObjectUtil columnField1 = new ObjectUtil(loader, "com.itfsw.mybatis.generator.plugins.dao.model.Tb$Column#field1");
+                    // java 动态参数不能有两个会冲突，最后一个封装成Array!!!必须使用反射创建指定类型数组，不然调用invoke对了可变参数会检查类型！
+                    Object columns1 = Array.newInstance(columnField1.getCls(), 1);
+                    Array.set(columns1, 0, columnField1.getObject());
+
+                    String sql = SqlHelper.getFormatMapperSql(tbMapper.getObject(), "selectByExampleSelective", tbExample.getObject(), columns1);
+                    Assert.assertEquals(sql, "select field1 from tb order by field2 asc");
+
+                    ObjectUtil columnField2 = new ObjectUtil(loader, "com.itfsw.mybatis.generator.plugins.dao.model.Tb$Column#field2");
+                    Object columns2 = Array.newInstance(columnField1.getCls(), 2);
+                    Array.set(columns2, 0, columnField1.getObject());
+                    Array.set(columns2, 1, columnField2.getObject());
+
+                    sql = SqlHelper.getFormatMapperSql(tbMapper.getObject(), "selectByExampleSelective", tbExample.getObject(), columns2);
+                    Assert.assertEquals(sql, "select field1 ,  field2 from tb order by field2 asc");
+
+
+                    // 2. 执行sql
+                    List list = (List) tbMapper.invokeVarArgs("selectByExampleSelective", tbExample.getObject(), columns1);
+                    Assert.assertEquals(list.size(), 3);
+                    int index = 0;
+                    for (Object obj : list) {
+                        ObjectUtil objectUtil = new ObjectUtil(obj);
+                        // 没有查询这两个字段
+                        if (objectUtil.get("id") != null || objectUtil.get("field2") != null) {
+                            Assert.assertTrue(false);
+                        }
+                        if (index == 0) {
+                            Assert.assertEquals(objectUtil.get("field1"), "fd1");
+                        } else if (index == 1) {
+                            Assert.assertNull(objectUtil.get("field1"));
+                        } else {
+                            Assert.assertEquals(objectUtil.get("field1"), "fd3");
+                        }
+
+                        index++;
+                    }
+                } catch (Exception e) {
+                    e.printStackTrace();
+                    Assert.assertTrue(false);
+                } finally {
+                    sqlSession.close();
+                }
+            }
+        }, warnings);
+        myBatisGenerator.generate(null, null, null, true);
+    }
+
+    @AfterClass
+    public static void clean() {
+        // DBHelper.reset();
+    }
+}

src/test/java/com/itfsw/mybatis/generator/plugins/tools/ObjectUtil.java

@@ -19,7 +19,6 @@ package com.itfsw.mybatis.generator.plugins.tools;
 import java.lang.reflect.Field;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
-import java.lang.reflect.Parameter;
 
 /**
  * ---------------------------------------------------------------------------
@@ -122,7 +121,6 @@ public class ObjectUtil {
             if (method.getName().equals(methodName) && method.getParameterTypes().length == args.length) {
                 boolean flag = true;
                 Class[] parameterTypes = method.getParameterTypes();
-                Parameter[] pps = method.getParameters();
                 for (int i = 0; i < args.length; i++) {
                     if (!(parameterTypes[i].isAssignableFrom(args[i].getClass()))) {
                         flag = false;

src/test/resources/mybatis-config.xml

@@ -19,6 +19,10 @@
 <configuration>
     <properties resource="db.properties" />
 
+    <settings>
+        <setting name="callSettersOnNulls" value="true"/>
+    </settings>
+
     <!-- 配置环境，制定数据库连接信息 -->
     <environments default="test">
         <environment id="test">

src/test/resources/scripts/SelectSelectivePlugin/init.sql

+/*
+Navicat MySQL Data Transfer
+
+Source Server         : localhost
+Source Server Version : 50617
+Source Host           : localhost:3306
+Source Database       : mybatis-generator-plugin
+
+Target Server Type    : MYSQL
+Target Server Version : 50617
+File Encoding         : 65001
+
+Date: 2017-06-30 11:15:22
+*/
+
+SET FOREIGN_KEY_CHECKS=0;
+
+-- ----------------------------
+-- Table structure for tb
+-- ----------------------------
+DROP TABLE IF EXISTS `tb`;
+CREATE TABLE `tb` (
+  `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '注释1',
+  `field1` varchar(255) DEFAULT NULL COMMENT '注释2',
+  `field2` int(11) DEFAULT NULL,
+  PRIMARY KEY (`id`)
+) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8;
+
+-- ----------------------------
+-- Records of tb
+-- ----------------------------
+INSERT INTO `tb` VALUES ('1', 'fd1', null);
+INSERT INTO `tb` VALUES ('2', null, '2');
+INSERT INTO `tb` VALUES ('3', 'fd3', '3');
+
+-- ----------------------------
+-- Table structure for tb_blobs
+-- ----------------------------
+DROP TABLE IF EXISTS `tb_blobs`;
+CREATE TABLE `tb_blobs` (
+  `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '注释1',
+  `field1` varchar(255) DEFAULT NULL,
+  `field2` longtext COMMENT '注释2',
+  `field3` longtext,
+  PRIMARY KEY (`id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+
+-- ----------------------------
+-- Records of tb_blobs
+-- ----------------------------
+
+-- ----------------------------
+-- Table structure for tb_keys
+-- ----------------------------
+DROP TABLE IF EXISTS `tb_keys`;
+CREATE TABLE `tb_keys` (
+  `key1` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '注释1',
+  `key2` varchar(255) NOT NULL,
+  `field1` varchar(255) DEFAULT NULL COMMENT '注释2',
+  `field2` int(11) DEFAULT NULL,
+  PRIMARY KEY (`key1`,`key2`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+
+-- ----------------------------
+-- Records of tb_keys
+-- ----------------------------
+
+-- ----------------------------
+-- Table structure for tb_single_blob
+-- ----------------------------
+DROP TABLE IF EXISTS `tb_single_blob`;
+CREATE TABLE `tb_single_blob` (
+  `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '注释1',
+  `field1` longtext COMMENT '注释2',
+  `field2` int(11) DEFAULT NULL,
+  PRIMARY KEY (`id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+
+-- ----------------------------
+-- Records of tb_single_blob
+-- ----------------------------

src/test/resources/scripts/SelectSelectivePlugin/mybatis-generator.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Copyright (c) 2017.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<!DOCTYPE generatorConfiguration
+        PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
+        "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
+<generatorConfiguration>
+    <properties resource="db.properties"/>
+    <!--导入属性配置 -->
+    <context id="default" targetRuntime="MyBatis3">
+        <!-- 插件 -->
+        <!-- Select Selective插件 -->
+        <plugin type="com.itfsw.mybatis.generator.plugins.SelectSelectivePlugin"/>
+        <!-- 数据Model属性对应Column获取插件 -->
+        <plugin type="com.itfsw.mybatis.generator.plugins.ModelColumnPlugin"/>
+        <!-- 查询单条数据插件 -->
+        <plugin type="com.itfsw.mybatis.generator.plugins.SelectOneByExamplePlugin"/>
+
+        <!--jdbc的数据库连接 -->
+        <jdbcConnection driverClass="${db.driver}" connectionURL="${db.url}" userId="${db.username}" password="${db.password}" />
+        <!-- Model模型生成器,用来生成含有主键key的类，记录类 以及查询Example类
+            targetPackage     指定生成的model生成所在的包名
+            targetProject     指定在该项目下所在的路径  -->
+        <javaModelGenerator targetPackage="com.itfsw.mybatis.generator.plugins.dao.model" targetProject="src/test/java">
+            <!-- 是否对model添加 构造函数 -->
+            <property name="constructorBased" value="true"/>
+            <!-- 给Model添加一个父类 -->
+            <!--<property name="rootClass" value="com.itfsw.base"/>-->
+        </javaModelGenerator>
+        <!--Mapper映射文件生成所在的目录 为每一个数据库的表生成对应的SqlMap文件 -->
+        <sqlMapGenerator targetPackage="com.itfsw.mybatis.generator.plugins.dao" targetProject="src/test/java" />
+        <!-- 客户端代码，生成易于使用的针对Model对象和XML配置文件 的代码
+            type="ANNOTATEDMAPPER",生成Java Model 和基于注解的Mapper对象
+            type="MIXEDMAPPER",生成基于注解的Java Model 和相应的Mapper对象
+            type="XMLMAPPER",生成SQLMap XML文件和独立的Mapper接口 -->
+        <javaClientGenerator targetPackage="com.itfsw.mybatis.generator.plugins.dao" targetProject="src/test/java" type="XMLMAPPER"/>
+
+        <!-- +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 要自动生成的表 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
+        <table tableName="tb">
+            <generatedKey column="id" sqlStatement="MySql" identity="true"/>
+        </table>
+        <table tableName="tb_keys" />
+        <table tableName="tb_single_blob">
+            <generatedKey column="id" sqlStatement="MySql" identity="true"/>
+        </table>
+        <table tableName="tb_blobs">
+            <generatedKey column="id" sqlStatement="MySql" identity="true"/>
+        </table>
+    </context>
+</generatorConfiguration>
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