添加freemarker执行工具

pom.xml

@@ -19,6 +19,7 @@
         <hutool.version>5.8.16</hutool.version>
         <mybatis-puls-spring-boot.version>3.3.1</mybatis-puls-spring-boot.version>
         <knife4j.version>3.0.3</knife4j.version>
+        <postgresql.version>42.2.18</postgresql.version>
     </properties>
 
     <dependencies>
@@ -51,7 +52,7 @@
         <dependency>
             <groupId>org.postgresql</groupId>
             <artifactId>postgresql</artifactId>
-            <version>42.3.8</version>
+            <version>${postgresql.version}</version>
         </dependency>
         <dependency>
             <groupId>org.projectlombok</groupId>
@@ -80,6 +81,11 @@
             <version>${knife4j.version}</version>
         </dependency>
 
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-freemarker</artifactId>
+        </dependency>
+
     </dependencies>
 
     <build>

src/main/java/com/supervision/util/freemark/DatabaseTemplateLoader.java

@@ -0,0 +1,83 @@
+package com.supervision.util.freemark;
+
+import cn.hutool.core.util.ObjUtil;
+import com.supervision.domain.IrKnowledge;
+import com.supervision.service.IrKnowledgeService;
+import freemarker.cache.TemplateLoader;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Component;
+
+import java.io.Reader;
+import java.io.StringReader;
+
+/**
+ * Created by xiaoj on 2016/9/8.
+ */
+@Slf4j
+@Component
+@RequiredArgsConstructor
+public class DatabaseTemplateLoader implements TemplateLoader {
+
+    private final IrKnowledgeService irKnowledgeService;
+
+    @Override
+    public Object findTemplateSource(String templateId) {
+        try {
+            IrKnowledge irKnowledge = irKnowledgeService.getById(templateId);
+            long lastModified = ObjUtil.isNull(irKnowledge.getUpdateTime()) ? 0L : irKnowledge.getUpdateTime().getNano();
+            return new StringTemplateSource(templateId, irKnowledge.getResultTemplate(),lastModified);
+        } catch (Exception e) {
+            return null;
+        }
+    }
+
+    @Override
+    public long getLastModified(Object templateSource) {
+        return ((StringTemplateSource) templateSource).lastModified;
+    }
+
+    @Override
+    public Reader getReader(Object templateSource, String encoding) {
+        return new StringReader(((StringTemplateSource) templateSource).source);
+    }
+
+    @Override
+    public void closeTemplateSource(Object templateSource) {
+        //do nothing
+    }
+
+    private static class StringTemplateSource {
+        private final String name;
+        private final String source;
+        private final long lastModified;
+
+        StringTemplateSource(String name, String source, long lastModified) {
+            if (name == null) {
+                throw new IllegalArgumentException("name == null");
+            }
+            if (source == null) {
+                throw new IllegalArgumentException("source == null");
+            }
+            if (lastModified < -1L) {
+                throw new IllegalArgumentException("lastModified < -1L");
+            }
+            this.name = name;
+            this.source = source;
+            this.lastModified = lastModified;
+        }
+
+        public boolean equals(Object obj) {
+            if (obj instanceof StringTemplateSource) {
+                return name.equals(((StringTemplateSource) obj).name);
+            }
+            return false;
+        }
+
+        public int hashCode() {
+            return name.hashCode();
+        }
+    }
+
+
+}

src/main/java/com/supervision/util/freemark/FreemarkerConfiguration.java

@@ -0,0 +1,15 @@
+package com.supervision.util.freemark;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+
+@Configuration
+public class FreemarkerConfiguration {
+    @Bean("databaseFreemarkerConfiguration")
+    public freemarker.template.Configuration databaseTemplateLoader(DatabaseTemplateLoader databaseTemplateLoader) {
+        freemarker.template.Configuration configuration = new freemarker.template.Configuration(freemarker.template.Configuration.VERSION_2_3_30);
+        configuration.setTemplateLoader(databaseTemplateLoader);
+        return configuration;
+    }
+}

src/main/java/com/supervision/util/mybatis/RowMapperStatementBuilder.java

@@ -1,4 +1,4 @@
-package com.supervision.util;
+package com.supervision.util.mybatis;
 
 import org.apache.ibatis.builder.StaticSqlSource;
 import org.apache.ibatis.mapping.*;

src/main/java/com/supervision/util/mybatis/RowSqlMapper.java

@@ -1,5 +1,6 @@
-package com.supervision.util;
+package com.supervision.util.mybatis;
 
+import com.supervision.util.mybatis.RowMapperStatementBuilder;
 import org.apache.ibatis.exceptions.TooManyResultsException;
 import org.apache.ibatis.session.SqlSession;
 import org.springframework.stereotype.Component;

src/test/java/com/supervision/AskApplicationTests.java

@@ -1,7 +1,10 @@
 package com.supervision;
 
 import com.supervision.service.IrKnowledgeService;
-import com.supervision.util.RowSqlMapper;
+import com.supervision.util.mybatis.RowSqlMapper;
+import freemarker.template.Configuration;
+import freemarker.template.Template;
+import freemarker.template.TemplateException;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.junit.jupiter.api.Test;
@@ -10,6 +13,8 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 
+import java.io.IOException;
+import java.io.StringWriter;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -28,18 +33,33 @@ class AskApplicationTests {
     @Autowired
     private RowSqlMapper sqlMapper;
     @Test
-    void RowSqlMapperTest() {
+    void rowSqlMapperTest() {
 
         HashMap<String, Object> params = new HashMap<>();
         params.put("id", "111");
         //params.put("dept_name","沈阳公安");
         // and dept_name= #{dept_name}
-        //<if test="dept_name != null">
-        //            and dept_name= #{dept_name}
-        //        </if>
         List<Map<String, Object>> maps = sqlMapper.selectList("<script> select * from interro_robot.ir_robot_config where id = #{id} <if test= \"dept_name != null\">" +
                 " and dept_name= #{dept_name} </if> </script>",params);
         System.out.println(maps);
     }
 
+    @Autowired
+    private Configuration databaseFreemarkerConfiguration;
+
+    @Test
+    void dbFreemarkerLoadTest() throws IOException, TemplateException {
+
+        Template temp = databaseFreemarkerConfiguration.getTemplate("1770984442920292354");
+        StringWriter writer = new StringWriter();
+        HashMap<String, Object> params = new HashMap<>();
+        params.put("jykh_count","ss");
+        temp.process(params, writer);
+        System.out.println(writer);
+        writer.close();
+
+    }
+
+
+
 }