update delete 无条件阻断 sql 解析用例

mybatis-plus-core/src/test/java/com/baomidou/mybatisplus/core/test/JSqlParserTest.java

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+package com.baomidou.mybatisplus.core.test;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import net.sf.jsqlparser.expression.operators.conditional.AndExpression;
+import net.sf.jsqlparser.parser.CCJSqlParserUtil;
+import net.sf.jsqlparser.statement.delete.Delete;
+import net.sf.jsqlparser.statement.select.PlainSelect;
+import net.sf.jsqlparser.statement.select.Select;
+import net.sf.jsqlparser.statement.update.Update;
+
+/**
+ * SQL 解析测试
+ */
+public class JSqlParserTest {
+
+
+    @Test
+    public void parser() throws Exception {
+        Select select = (Select) CCJSqlParserUtil.parse("SELECT a,b,c FROM tableName t WHERE t.col = 9 and b=c LIMIT 3, ?");
+
+        PlainSelect ps = (PlainSelect) select.getSelectBody();
+
+        System.out.println(ps.getWhere().toString());
+        System.out.println(ps.getSelectItems().get(1).toString());
+
+        AndExpression e = (AndExpression) ps.getWhere();
+        System.out.println(e.getLeftExpression());
+    }
+
+
+    @Test
+    public void updateWhereParser() throws Exception {
+        Update update = (Update) CCJSqlParserUtil.parse("Update tableName t SET t.a=(select c from tn where tn.id=t.id),b=2,c=3 ");
+        Assert.assertTrue(null == update.getWhere());
+    }
+
+
+    @Test
+    public void deleteWhereParser() throws Exception {
+        Delete delete = (Delete) CCJSqlParserUtil.parse("delete from tableName t");
+        Assert.assertTrue(null == delete.getWhere());
+    }
+}