使用freemarker生成自定义代码
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2024-01-18 10:42:58
好吧，废话不多说，鄙人造*了。 如题所示,生成自定义模板的数据库三件套 javabean/javaclient/sqlMap 使用到Lombok、freemarker 上述是读取数据库的表信息跟字段信息,接下来是表名跟字段名的命名转换规则接口 再然后就是数据库拿表跟字段信息了 代码中有注释信息,相 ......
好吧，废话不多说，鄙人造*了。
如题所示,生成自定义模板的数据库三件套 javabean/javaclient/sqlMap
使用到Lombok、freemarker
1 package com.generator.db.domain;
2
3 import java.util.List;
4 import java.util.Set;
5
6 import lombok.Data;
7
8 @Data
9 public class Table {
10 /** 包名 */
11 private String packageName;
12
13 /** 表说明 */
14 private String common;
15 /** 表名称 */
16 private String tableName;
17 /** 类名 */
18 private String className;
19 /** 表字段(普通字段) */
20 private List<Column> columns;
21 /** 表字段(主键字段) */
22 private List<Column> primaryKeyColumns;
23
24 /** 主键类型 */
25 private String primaryKeysType;
26 /** 主键类包名 */
27 private String primaryKeysPackageName;
28 /** 需要导入的包 */
29 private Set<String> importPackages;
30 }
package com.generator.db.domain;
import lombok.Data;
@Data
public class Column {
/** 所在表 */
private String tableName;
/** 字段说明 */
private String common;
/** 列名 */
private String columnName;
/** java属性名 */
private String propertyName;
/** 数据库类型 */
private String jdbcType;
/** java类型 全限定名 */
private String javaType;
/** java类型 类名 */
private String simpleJavaType;
/** java类型是否需要导包 即 是否不在java.lang包下 */
private String needImportPackage;
/** 数据长度 */
private int length;
/** 是否可以为空 */
private String isNull;
/** 是否是主键 */
private String isPrimaryKey;
}
上述是读取数据库的表信息跟字段信息,接下来是表名跟字段名的命名转换规则接口
1 package com.generator.convert;
2
3 @FunctionalInterface
4 public interface DBNameConvert {
5 String convert(String name);
6 }
再然后就是数据库拿表跟字段信息了
1 package com.generator.db;
2
3 import java.sql.Connection;
4 import java.sql.DatabaseMetaData;
5 import java.sql.DriverManager;
6 import java.sql.ResultSet;
7 import java.sql.SQLException;
8 import java.util.ArrayList;
9 import java.util.HashMap;
10 import java.util.List;
11 import java.util.Map;
12 import java.util.stream.Collectors;
13
14 import com.generator.convert.DBNameConvert;
15 import com.generator.db.domain.Column;
16 import com.generator.db.domain.Table;
17
18 public final class DBUtils {
19 public static String URL;
20 public static String USERNAME;
21 public static String PASSWORD;
22 private static final String BOOLEAN_STRING_TRUE = "true";
23 private static final String BOOLEAN_STRING_FALSE = "false";
24
25 /** 表名 */
26 public static final String TABLE_NAME = "TABLE_NAME";
27 /** 列名 */
28 public static final String COLUMN_NAME = "COLUMN_NAME";
29 /** 备注 */
30 public static final String REMARKS = "REMARKS";
31 /** 数据类型 */
32 public static final String DATA_TYPE = "DATA_TYPE";
33 /** 列长度 */
34 public static final String COLUMN_SIZE = "COLUMN_SIZE";
35 /** 是否可以为NULL */
36 public static final String NULLABLE = "NULLABLE";
37
38 public static void init(String url, String username, String password) {
39 URL = url;
40 USERNAME = username;
41 PASSWORD = password;
42 }
43
44 public static Connection getConn() {
45 Connection connection = null;
46 try {
47 connection = DriverManager.getConnection(URL, USERNAME, PASSWORD);
48 } catch (Exception e) {
49 e.printStackTrace();
50 }
51 return connection;
52 }
53
54 public static List<Table> getTablesInfo(String packageName, DBNameConvert tableConvert,
55 DBNameConvert columnConvert) {
56 List<Table> tables = getTables(packageName, tableConvert);
57 List<Column> columns = getColumns(columnConvert);
58
59 Map<String, List<Column>> columnsMap = columns.stream().collect(Collectors.groupingBy(Column::getTableName));
60 List<Table> primaryKeysClasses = new ArrayList<>();
61 tables.forEach(t -> {
62 List<Column> allColumns = columnsMap.get(t.getTableName());
63 List<Column> tablePrimaryKeys = t.getPrimaryKeyColumns();
64 Map<String, Column> tablePrimaryKeysMap = tablePrimaryKeys.stream()
65 .collect(Collectors.toMap(Column::getColumnName, table -> table));
66
67 /** 对集合中的列设置是否主键标识 */
68 allColumns.forEach(c -> {
69 if (tablePrimaryKeysMap.get(c.getColumnName()) != null) {
70 c.setIsPrimaryKey(BOOLEAN_STRING_TRUE);
71 } else {
72 c.setIsPrimaryKey(BOOLEAN_STRING_FALSE);
73 }
74 });
75
76 List<Column> pkColumns = allColumns.stream().filter(c -> BOOLEAN_STRING_TRUE.equals(c.getIsPrimaryKey()))
77 .collect(Collectors.toList());
78 /** 将多个主键移除普通列 */
79 Map<String, Column> removePKColumns = pkColumns.stream()
80 .collect(Collectors.toMap(Column::getColumnName, table -> table));
81 allColumns = allColumns.stream().filter(c -> removePKColumns.get(c.getColumnName()) == null)
82 .collect(Collectors.toList());
83
84 if (pkColumns.size() > 1) {
85 Table primaryKeysClass = new Table();
86 primaryKeysClass.setColumns(pkColumns);
87 primaryKeysClass.setPackageName(t.getPackageName() + ".base");
88 primaryKeysClass.setClassName(t.getClassName() + "Key");
89 primaryKeysClasses.add(primaryKeysClass);
90
91 t.setPrimaryKeysPackageName(primaryKeysClass.getPackageName());
92 t.setPrimaryKeysType(primaryKeysClass.getClassName());
93 } else {
94 t.setPrimaryKeysType(pkColumns.get(0).getJavaType());
95 }
96 t.setPrimaryKeyColumns(pkColumns);
97 t.setColumns(allColumns);
98
99 t.setImportPackages(
100 t.getColumns().stream().filter(c -> c.getNeedImportPackage().equals(BOOLEAN_STRING_TRUE))
101 .map(Column::getJavaType).collect(Collectors.toSet()));
102 });
103
104 tables.addAll(primaryKeysClasses);
105
106 return tables;
107 }
108
109 private static List<Table> getTables(String packageName, DBNameConvert tableConvert) {
110 List<Table> tables = new ArrayList<>();
111 Connection conn = getConn();
112 try {
113 DatabaseMetaData metaData = conn.getMetaData();
114 ResultSet tablesResultSet = metaData.getTables(conn.getCatalog(), "%", "%", new String[] { "TABLE" });
115 Table table = null;
116 Column primaryKeysColumn = null;
117 List<Column> primaryKeysColumns = null;
118 while (tablesResultSet.next()) {
119 table = new Table();
120 primaryKeysColumns = new ArrayList<>();
121 table.setPackageName(packageName);
122 table.setTableName(tablesResultSet.getString(TABLE_NAME));
123 table.setCommon(tablesResultSet.getString(REMARKS));
124 table.setClassName(tableConvert.convert(table.getTableName()));
125 ResultSet primaryKeysResultSet = metaData.getPrimaryKeys(conn.getCatalog(), "%", table.getTableName());
126 while (primaryKeysResultSet.next()) {
127 primaryKeysColumn = new Column();
128 primaryKeysColumn.setColumnName(primaryKeysResultSet.getString(COLUMN_NAME));
129 primaryKeysColumns.add(primaryKeysColumn);
130 }
131
132 table.setPrimaryKeyColumns(primaryKeysColumns);
133 tables.add(table);
134 }
135 } catch (SQLException e) {
136 e.printStackTrace();
137 }
138 return tables;
139 }
140
141 private static List<Column> getColumns(DBNameConvert columnConvert) {
142 List<Column> columns = new ArrayList<>();
143 Connection conn = getConn();
144 try {
145 DatabaseMetaData metaData = conn.getMetaData();
146 ResultSet columnsResultSet = metaData.getColumns(conn.getCatalog(), "%", "%", "%");
147 Column column = null;
148 Map<Integer, String> intTypeMapper = intTypeMapper();
149 Map<String, String> jdbcJavaTypeMapper = jdbcJavaTypeMapper();
150 while (columnsResultSet.next()) {
151 column = new Column();
152 column.setTableName(columnsResultSet.getString(TABLE_NAME));
153 column.setColumnName(columnsResultSet.getString(COLUMN_NAME));
154 column.setCommon(columnsResultSet.getString(REMARKS));
155 /** jdbcType从数字映射到字符串类型 */
156 column.setJdbcType(intTypeMapper.get(columnsResultSet.getInt(DATA_TYPE)));
157 /** javaType从数据库类型映射到java类型 */
158 column.setJavaType(jdbcJavaTypeMapper.get(column.getJdbcType()));
159 column.setNeedImportPackage(BOOLEAN_STRING_TRUE);
160 if(column.getJavaType().indexOf(".")<0||column.getJavaType().startsWith("java.lang.")) {
161 column.setNeedImportPackage(BOOLEAN_STRING_FALSE);
162 }
163 column.setSimpleJavaType(column.getJavaType());
164 column.setLength(columnsResultSet.getInt(COLUMN_SIZE));
165 column.setIsNull(String.valueOf(columnsResultSet.getInt(NULLABLE) > 0));
166
167 column.setSimpleJavaType(column.getJavaType().substring(column.getJavaType().lastIndexOf(".") + 1));
168 /** 属性名转换 */
169 column.setPropertyName(columnConvert.convert(column.getColumnName()));
170 columns.add(column);
171 }
172 } catch (SQLException e) {
173 e.printStackTrace();
174 }
175 return columns;
176
177 }
178
179 public static Map<Integer, String> intTypeMapper() {
180 Map<Integer, String> map = new HashMap<>();
181 map.put(-7, "BIT");
182 map.put(-6, "TINYINT");
183 map.put(5, "SMALLINT");
184 map.put(4, "INTEGER");
185 map.put(-5, "BIGINT");
186 map.put(6, "FLOAT");
187 map.put(7, "REAL");
188 map.put(8, "DOUBLE");
189 map.put(2, "NUMERIC");
190 map.put(3, "DECIMAL");
191 map.put(1, "CHAR");
192 map.put(12, "VARCHAR");
193 map.put(-1, "LONGVARCHAR");
194 map.put(91, "DATE");
195 map.put(92, "TIME");
196 map.put(93, "TIMESTAMP");
197 map.put(-2, "BINARY");
198 map.put(-3, "VARBINARY");
199 map.put(-4, "LONGVARBINARY");
200 map.put(0, "NULL");
201 map.put(1111, "OTHER");
202 map.put(2000, "JAVA_OBJECT");
203 map.put(2001, "DISTINCT");
204 map.put(2002, "STRUCT");
205 map.put(2003, "ARRAY");
206 map.put(2004, "BLOB");
207 map.put(2005, "CLOB");
208 map.put(2006, "REF");
209 map.put(70, "DATALINK");
210 map.put(16, "BOOLEAN");
211 map.put(-8, "ROWID");
212 map.put(-15, "NCHAR");
213 map.put(-9, "NVARCHAR");
214 map.put(-16, "LONGNVARCHAR");
215 map.put(2011, "NCLOB");
216 map.put(2009, "SQLXML");
217 map.put(2012, "REF_CURSOR");
218 map.put(2013, "TIME_WITH_TIMEZONE");
219 map.put(2014, "TIMESTAMP_WITH_TIMEZONE");
220 return map;
221 }
222
223 public static Map<String, String> jdbcJavaTypeMapper() {
224 Map<String, String> map = new HashMap<>();
225 map.put("CHAR", "java.lang.String");
226 map.put("VARCHAR", "java.lang.String");
227 map.put("LONGVARCHAR", "java.lang.String");
228 map.put("NUMERIC", "java.math.BigDecimal");
229 map.put("DECIMAL", "java.math.BigDecimal");
230 map.put("BIT", "boolean");
231 map.put("BOOLEAN", "boolean");
232 map.put("TINYINT", "byte");
233 map.put("SMALLINT", "short");
234 map.put("INTEGER", "int");
235 map.put("BIGINT", "long");
236 map.put("REAL", "float");
237 map.put("FLOAT", "double");
238 map.put("DOUBLE", "double");
239 map.put("BINARY", "byte[]");
240 map.put("VARBINARY", "byte[]");
241 map.put("LONGVARBINARY", "byte[]");
242 map.put("DATE", "java.time.LocalDate");
243 map.put("TIME", "java.time.LocalTime");
244 map.put("TIMESTAMP", "java.time.LocalDateTime");
245 map.put("CLOB", "com.mysql.jdbc.Clob");
246 map.put("BLOB", "com.mysql.jdbc.Blob");
247 map.put("ARRAY", "Array");
248 map.put("STRUCT", "Struct");
249 map.put("REF", "Ref");
250 map.put("DATALINK", "java.net.URL");
251 return map;
252 }
253 }
代码中有注释信息,相信应该不难理解,接下来就是生成代码的动作了
1 package com.generator.convert;
2
3 import java.io.File;
4 import java.io.FileOutputStream;
5 import java.io.IOException;
6 import java.io.OutputStreamWriter;
7 import java.io.Writer;
8 import java.util.List;
9
10 import com.generator.db.DBUtils;
11 import com.generator.db.domain.Table;
12
13 import freemarker.template.Configuration;
14 import freemarker.template.Template;
15 import freemarker.template.TemplateException;
16 import freemarker.template.TemplateExceptionHandler;
17 import lombok.AllArgsConstructor;
18 import lombok.Data;
19 import lombok.NoArgsConstructor;
20
21 @Data
22 @AllArgsConstructor
23 @NoArgsConstructor
24 public class Generator {
25 /** 数据库配置 */
26 private DBSetting dbSetting;
27 /** 模板配置 */
28 private TemplateSetting templateSetting;
29 /** javaModel配置 */
30 private JavaModelSetting javaModelSetting;
31 /** sqlMap配置 */
32 private SqlMapSetting sqlMapSetting;
33 /** 生成文件目录配置 */
34 private FileSetting fileSetting;
35
36 /** javabean包名称 */
37 private String javaBeanPackageName;
38 /** javaClient包名称 */
39 private String javaClientPackageName;
40
41 public void generator() throws IOException, TemplateException {
42 Configuration conf = getConf();
43 DBUtils.init(dbSetting.getDbUrl(), dbSetting.getDbUserName(), dbSetting.getDbPassWord());
44 List<Table> tables = DBUtils.getTablesInfo(javaBeanPackageName, javaModelSetting.tableConvert,
45 javaModelSetting.columnConvert);
46
47 /** 获取模板 */
48 Template javaModelTemplate = conf.getTemplate(templateSetting.getJavaModelTemplate());
49 Template sqlMapTemplate = conf.getTemplate(templateSetting.getSqlMapTemplate());
50 Template javaClientTemplate = conf.getTemplate(templateSetting.getJavaClientTemplate());
51 Template sqlMapExtendTemplate = conf.getTemplate(templateSetting.getSqlMapExtendTemplate());
52
53 File javaModelPath = initDir(fileSetting.getJavaModel());
54 File javaClientPath = initDir(fileSetting.getJavaClient());
55 File sqlMapPath = initDir(fileSetting.getSqlMap());
56 tables.forEach(t -> {
57
58 try (Writer javaModelWriter = new OutputStreamWriter(
59 new FileOutputStream(new File(javaModelPath, t.getClassName() + ".java")))) {
60 javaModelTemplate.process(t, javaModelWriter);
61 } catch (Exception e) {
62 e.printStackTrace();
63 }
64
65 /** 即该table实际上是一个表的符合主键类,无需生成javabean以外的client及sqlMap */
66 if (t.getTableName() != null) {
67 try (Writer javaClientWriter = new OutputStreamWriter(
68 new FileOutputStream(new File(javaClientPath, t.getClassName() + "Mapper.java")));
69 Writer sqlMapWriter = new OutputStreamWriter(
70 new FileOutputStream(new File(sqlMapPath, t.getClassName() + "Mapper.xml")));
71 Writer sqlMapExtendWriter = new OutputStreamWriter(
72 new FileOutputStream(new File(sqlMapPath, t.getClassName() + "ExtendMapper.xml")))) {
73 javaClientTemplate.process(t, javaClientWriter);
74
75 /** 因为生成sqlMap要用到不止table对象的字段,所以添加sqlMapSetting来存放table属性,传入模板的对象是Generator自己,省的再要定义bean而且又嵌套属性 */
76 sqlMapSetting.setTable(t);
77 sqlMapTemplate.process(this, sqlMapWriter);
78 sqlMapExtendTemplate.process(this, sqlMapExtendWriter);
79 } catch (Exception e) {
80 e.printStackTrace();
81 }
82 }
83 });
84 }
85
86 private static File initDir(String path) {
87 File file = new File(path);
88 if (!file.exists()) {
89 file.mkdirs();
90 }
91 return file;
92 }
93
94 private Configuration getConf() throws IOException {
95 Configuration cfg = new Configuration(Configuration.VERSION_2_3_22);
96 cfg.setDirectoryForTemplateLoading(new File(templateSetting.getTemplateDir()));
97 cfg.setDefaultEncoding("UTF-8");
98 cfg.setTemplateExceptionHandler(TemplateExceptionHandler.RETHROW_HANDLER);
99 return cfg;
100 }
101
102 @Data
103 @AllArgsConstructor
104 @NoArgsConstructor
105 public static class FileSetting {
106 /** 生成文件根路径(不要也罢,这个无所谓,只要下面3个值OK就好) */
107 private String baseDir;
108 /** javaBean生成目录 */
109 private String javaModel;
110 /** javaClient生成目录 */
111 private String javaClient;
112 /** sqlMap生成目录 */
113 private String sqlMap;
114 }
115
116 @Data
117 @AllArgsConstructor
118 @NoArgsConstructor
119 public static class DBSetting {
120 /** 数据库链接 */
121 private String dbUrl;
122 /** 数据库用户名 */
123 private String dbUserName;
124 /** 数据库密码 */
125 private String dbPassWord;
126 }
127
128 @Data
129 @AllArgsConstructor
130 @NoArgsConstructor
131 public static class TemplateSetting {
132 /** 模板目录 */
133 private String templateDir;
134 /** javabean模板文件 */
135 private String javaModelTemplate;
136 /** javaClient模板文件 */
137 private String javaClientTemplate;
138 /** sqlMap模板文件 */
139 private String sqlMapTemplate;
140 /** sqlMap拓展模板文件 */
141 private String sqlMapExtendTemplate;
142 }
143
144 @Data
145 @AllArgsConstructor
146 @NoArgsConstructor
147 public static class JavaModelSetting {
148 /** 表名转类名实现 */
149 private DBNameConvert tableConvert;
150 /** 列名转属性名实现 */
151 private DBNameConvert columnConvert;
152 }
153
154 @Data
155 @AllArgsConstructor
156 @NoArgsConstructor
157 public static class SqlMapSetting {
158 /** 表信息 */
159 private Table table;
160 }
161 }
之所以把相关配置项都重新定义了一个内部类,是方便区分哪个属性是跟那块内容相关的,接下来是我个人的4个自定义模板
每个人可以根据Table跟Column的属性说明去定义自己的模板
1 package ${packageName};
2
3 <#if importPackages?exists>
4 <#list importPackages as package>
5 import ${package};
6 </#list>
7 </#if>
8 <#if primaryKeysPackageName?exists >
9 import ${primaryKeysPackageName}.${primaryKeysType};
10 </#if>
11 /**
12 *
13 */
14 public class ${className}<#if primaryKeysType?exists> extends ${primaryKeysType}</#if>{
15 <#list columns as column>
16 /** ${column.common} */
17 private ${column.simpleJavaType} ${column.propertyName};
18 </#list>
19
20 <#list columns as column>
21 public void set${column.propertyName?cap_first}(${column.simpleJavaType} ${column.propertyName}){
22 this.${column.propertyName} = ${column.propertyName};
23 }
24 public ${column.simpleJavaType} get${column.propertyName?cap_first}(){
25 return this.${column.propertyName};
26 }
27
28 </#list>
29 }
package ${packageName};
import com.generator.db.BaseMapper;
import ${packageName}.${className};
import ${primaryKeysPackageName}.${primaryKeysType};
public interface ${className}Mapper extends BaseMapper<${className},${primaryKeysType}>{
}
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="${javaClientPackageName}.${sqlMapSetting.table.className}Mapper">
<resultMap id="BaseResultMap" type="${javaBeanPackageName}.${sqlMapSetting.table.className}">
<#list sqlMapSetting.table.primaryKeyColumns as column>
<id column="${column.columnName}" jdbcType="${column.jdbcType}" property="${column.propertyName}" />
</#list>
<#list sqlMapSetting.table.columns as column>
<result column="${column.columnName}" jdbcType="${column.jdbcType}" property="${column.propertyName}" />
</#list>
</resultMap>
<sql id="Base_Column_List">
<#if sqlMapSetting.table.primaryKeyColumns?exists>
<#list sqlMapSetting.table.primaryKeyColumns as column>${column.columnName}<#if column_has_next>,</#if></#list>,
</#if>
<#list sqlMapSetting.table.columns as column>${column.columnName}<#if column_has_next>,</#if></#list>
</sql>
<select id="selectByPrimaryKey" parameterType="<#if sqlMapSetting.table.primaryKeysPackageName?exists >${sqlMapSetting.table.primaryKeysPackageName}.</#if>${sqlMapSetting.table.primaryKeysType}" resultMap="BaseResultMap">
select
<include refid="Base_Column_List" />
from ${sqlMapSetting.table.tableName}
where
<#list sqlMapSetting.table.primaryKeyColumns as column>
${column.columnName} = ${"#"}{${column.propertyName},jdbcType=${column.jdbcType}}
<#if column_has_next>and </#if>
</#list>
</select>
<delete id="deleteByPrimaryKey" parameterType="<#if sqlMapSetting.table.primaryKeysPackageName?exists >${sqlMapSetting.table.primaryKeysPackageName}.</#if>${sqlMapSetting.table.primaryKeysType}">
delete from ${sqlMapSetting.table.tableName}
where
<#list sqlMapSetting.table.primaryKeyColumns as column>
${column.columnName} = ${"#"}{${column.propertyName},jdbcType=${column.jdbcType}}
<#if column_has_next>and </#if>
</#list>
</delete>
<insert id="insert" parameterType="${javaBeanPackageName}.${sqlMapSetting.table.className}">
insert into ${sqlMapSetting.table.tableName} (
<#if sqlMapSetting.table.primaryKeyColumns?exists>
<#list sqlMapSetting.table.primaryKeyColumns as column>${column.columnName}<#if column_has_next>,</#if></#list>,</#if>
<#list sqlMapSetting.table.columns as column>${column.columnName}<#if column_has_next>,</#if></#list>)
values (
<#if sqlMapSetting.table.primaryKeyColumns?exists>
<#list sqlMapSetting.table.primaryKeyColumns as column>${"#"}{${column.columnName},jdbcType=${column.jdbcType}}<#if column_has_next>,</#if></#list>,</#if>
<#list sqlMapSetting.table.columns as column>${"#"}{${column.columnName},jdbcType=${column.jdbcType}}<#if column_has_next>,</#if></#list>))
</insert>
<insert id="insertSelective" parameterType="${javaBeanPackageName}.${sqlMapSetting.table.className}">
insert into ${sqlMapSetting.table.tableName} (
<trim prefix="(" suffix=")" suffixOverrides=",">
<#list sqlMapSetting.table.primaryKeyColumns as column>
<if test="${column.propertyName} != null">
${column.columnName},
</if>
</#list>
<#list sqlMapSetting.table.columns as column>
<if test="${column.propertyName} != null">
${column.columnName},
</if>
</#list>
)
</trim>
<trim prefix="values (" suffix=")" suffixOverrides=",">
<#list sqlMapSetting.table.primaryKeyColumns as column>
<if test="${column.propertyName} != null">
${"#"}{${column.propertyName},jdbcType=${column.jdbcType}}
</if>
</#list>
<#list sqlMapSetting.table.columns as column>
<if test="${column.propertyName} != null">
${"#"}{${column.propertyName},jdbcType=${column.jdbcType}}
</if>
</#list>
</trim>
</insert>
<update id="updateByPrimaryKeySelective" parameterType="${javaBeanPackageName}.${sqlMapSetting.table.className}">
update ${sqlMapSetting.table.tableName}
<set>
<#list sqlMapSetting.table.columns as column>
<if test="${column.propertyName} != null">
${column.columnName} = ${"#"}{${column.propertyName},jdbcType=${column.jdbcType}}
</if>
</#list>
</set>
where
<#list sqlMapSetting.table.primaryKeyColumns as column>
${column.columnName} = ${"#"}{${column.propertyName},jdbcType=${column.jdbcType}}
<#if column_has_next>and</#if>
</#list>
</update>
<update id="updateByPrimaryKey" parameterType="${javaBeanPackageName}.${sqlMapSetting.table.className}">
update sys_user
set
<#list sqlMapSetting.table.columns as column>
${column.columnName} = ${""}{${column.propertyName},jdbcType=${column.jdbcType}}<#if column_has_next>,</#if>
</#list>
where
<#list sqlMapSetting.table.primaryKeyColumns as column>
${column.columnName} = ${"#"}{${column.propertyName},jdbcType=${column.jdbcType}}
<#if column_has_next>and </#if>
</#list>
</update>
</mapper>
1 <?xml version="1.0" encoding="UTF-8"?>
2 <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
3 <mapper namespace="${javaClientPackageName}.${sqlMapSetting.table.className}Mapper">
4
5 </mapper>
对了 补上模板中的BaseMapper.java,凑齐一套,说不定还有人可以直接拿来用。
1 package com.generator.mapper;
2
3 public interface BaseMapper<MODEL,KEY> {
4
5 int deleteByPrimaryKey(KEY key);
6
7 int insert(MODEL model);
8
9 int insertSelective(MODEL model);
10
11 MODEL selectByPrimaryKey(KEY key);
12
13 int updateByPrimaryKey(MODEL model);
14
15 int updateByPrimaryKeySelective(MODEL model);
16 }
还有遗漏的pom依赖
<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.utils</groupId>
<artifactId>generator</artifactId>
<version>0.0.1-SNAPSHOT</version>
<dependencies>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.16.20</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.freemarker</groupId>
<artifactId>freemarker</artifactId>
<version>2.3.23</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.38</version>
</dependency>
</dependencies>
</project>
打完收工
第一次写博客.希望能坚持并且能帮助到一些需要的人！
freemarker第一次使用,语法什么的都是临时百度能生效就成,哈哈.
javabean.ftl中的get/set方法也可以省略掉 加上lombok的Data注解即可
上传代码之前将sqlmap属性改成了sqlMap,eclipse使用快捷键alt+shift+R修改属性名,调用到getSqlmap方法的名字没有级联改变,原因就不言而喻了,这应该确实算是使用lombok的一点不足(虽然,改属性名这个操作,几乎不存在,能改善最好了)
马马虎虎就这么着吧。
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