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fix: officeweb.ftl 数值水印缺省值改为字符串，避免按 locale 格式化

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上一版给六个数值水印变量用的是数值缺省值（${watermarkAlpha!0.2} 等）。
FreeMarker 按请求的 locale 格式化数值：Accept-Language 为 de-DE / fr-FR 时
0.2 输出成 0,2，ar-EG 时数字变成阿拉伯-印度数字，内联脚本解析失败，
initWaterMark 与 isLoading 都没有定义，xlsx 预览照样起不来——而此时响应是 200、
页面也有 </html>，只看页面完整性看不出来。

改为字符串缺省值，与 WatermarkConfigConstants.DEFAULT_* 的类型一致，原样输出。
已配置的值本来就是字符串，不受影响。

测试改为按 zh-CN / en-US / de-DE / fr-FR / ar-EG 逐个渲染，并逐个断言全部数值
输出；已有配置那条也按 zh-CN / de-DE / ar-EG 跑。改模板前先跑：de-DE、fr-FR
红在 watermark_alpha: 0,2，ar-EG 红在 watermark_x_space: ١٠，其余五条通过；
改后 8 条全过。

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
This commit is contained in:
yuhaibo
2026-09-27 08:48:33 -07:00
parent c4e1929ecf
commit 45d7e34678
2 changed files with 52 additions and 26 deletions
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12
server/src/main/resources/web/officeweb.ftl
View File

@@ -30,15 +30,15 @@
watermark_y: 0,
watermark_rows: 0,
watermark_cols: 0,
watermark_x_space: ${watermarkXSpace!10},
watermark_y_space: ${watermarkYSpace!10},
watermark_x_space: ${watermarkXSpace!'10'},
watermark_y_space: ${watermarkYSpace!'10'},
watermark_font: '${watermarkFont!'微软雅黑'}',
watermark_fontsize: '${watermarkFontsize!'18px'}',
watermark_color: '${watermarkColor!'black'}',
watermark_alpha: ${watermarkAlpha!0.2},
watermark_width: ${watermarkWidth!240},
watermark_height: ${watermarkHeight!80},
watermark_angle: ${watermarkAngle!10},
watermark_alpha: ${watermarkAlpha!'0.2'},
watermark_width: ${watermarkWidth!'240'},
watermark_height: ${watermarkHeight!'80'},
watermark_angle: ${watermarkAngle!'10'},
});
}
}

66
server/src/test/java/cn/keking/web/OfficeWebWatermarkDefaultsTests.java
View File

@@ -3,10 +3,12 @@ package cn.keking.web;
import freemarker.template.Configuration;
import freemarker.template.Template;
import freemarker.template.TemplateExceptionHandler;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.ValueSource;
import java.io.StringWriter;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import static org.junit.jupiter.api.Assertions.assertTrue;
@@ -24,21 +26,36 @@ import static org.junit.jupiter.api.Assertions.assertTrue;
*
* The first test therefore renders with a model that carries no watermark* entry at all.
* Do not add them "to make it realistic" - that is the condition under test.
*
* The template's defaults are string literals on purpose: a numeric default goes through
* FreeMarker's locale-aware number format, so under de_DE 0.2 renders as "0,2" and under
* ar_EG the digits become Arabic-Indic - either way the inline script no longer parses.
* The locale comes from the request's Accept-Language, which is why both tests run per
* locale and every numeric value is asserted, not just one.
*/
class OfficeWebWatermarkDefaultsTests {
@Test
void shouldRenderXlsxPreviewPageWhenWatermarkAttributesAreMissing() throws Exception {
String html = render(baseModel());
@ParameterizedTest
@ValueSource(strings = {"zh-CN", "en-US", "de-DE", "fr-FR", "ar-EG"})
void shouldRenderXlsxPreviewPageWhenWatermarkAttributesAreMissing(String languageTag) throws Exception {
String html = render(baseModel(), Locale.forLanguageTag(languageTag));
assertTrue(html.contains("</html>"), "page was truncated before </html>");
assertTrue(html.contains("let watermarkTxt = '';"), "watermarkTxt did not fall back to an empty string");
assertTrue(html.contains("watermark_width: 240,"), "watermarkWidth did not fall back to its declared default");
assertTrue(html.contains("watermark_font: '\u5fae\u8f6f\u96c5\u9ed1',"), "watermarkFont did not fall back to its declared default");
assertRendered(html, "watermark_x_space: 10,");
assertRendered(html, "watermark_y_space: 10,");
assertRendered(html, "watermark_font: '微软雅黑',");
assertRendered(html, "watermark_fontsize: '18px',");
assertRendered(html, "watermark_color: 'black',");
assertRendered(html, "watermark_alpha: 0.2,");
assertRendered(html, "watermark_width: 240,");
assertRendered(html, "watermark_height: 80,");
assertRendered(html, "watermark_angle: 10,");
}
@Test
void shouldKeepConfiguredWatermarkSettingsWhenAttributesArePresent() throws Exception {
@ParameterizedTest
@ValueSource(strings = {"zh-CN", "de-DE", "ar-EG"})
void shouldKeepConfiguredWatermarkSettingsWhenAttributesArePresent(String languageTag) throws Exception {
Map<String, Object> model = baseModel();
model.put("watermarkTxt", "kkFileView");
model.put("watermarkXSpace", "20");
@@ -51,18 +68,26 @@ class OfficeWebWatermarkDefaultsTests {
model.put("watermarkHeight", "120");
model.put("watermarkAngle", "45");
String html = render(model);
String html = render(model, Locale.forLanguageTag(languageTag));
assertTrue(html.contains("let watermarkTxt = 'kkFileView';"));
assertTrue(html.contains("watermark_x_space: 20,"));
assertTrue(html.contains("watermark_y_space: 30,"));
assertTrue(html.contains("watermark_font: 'Arial',"));
assertTrue(html.contains("watermark_fontsize: '24px',"));
assertTrue(html.contains("watermark_color: 'red',"));
assertTrue(html.contains("watermark_alpha: 0.5,"));
assertTrue(html.contains("watermark_width: 300,"));
assertTrue(html.contains("watermark_height: 120,"));
assertTrue(html.contains("watermark_angle: 45,"));
assertRendered(html, "watermark_x_space: 20,");
assertRendered(html, "watermark_y_space: 30,");
assertRendered(html, "watermark_font: 'Arial',");
assertRendered(html, "watermark_fontsize: '24px',");
assertRendered(html, "watermark_color: 'red',");
assertRendered(html, "watermark_alpha: 0.5,");
assertRendered(html, "watermark_width: 300,");
assertRendered(html, "watermark_height: 120,");
assertRendered(html, "watermark_angle: 45,");
}
/** On failure, show the line that was actually emitted for that key. */
private static void assertRendered(String html, String expected) {
String key = expected.substring(0, expected.indexOf(':') + 1);
int start = html.indexOf(key);
String actual = start < 0 ? "<missing>" : html.substring(start, html.indexOf('\n', start)).trim();
assertTrue(html.contains(expected), "expected \"" + expected + "\" but rendered \"" + actual + "\"");
}
/** Everything officeweb.ftl needs except the watermark attributes. */
@@ -78,13 +103,14 @@ class OfficeWebWatermarkDefaultsTests {
return model;
}
private String render(Map<String, Object> model) throws Exception {
/** Same lookup as Spring's FreeMarkerView: the template is resolved for the request locale. */
private String render(Map<String, Object> model, Locale locale) throws Exception {
Configuration configuration = new Configuration(Configuration.VERSION_2_3_32);
configuration.setClassLoaderForTemplateLoading(getClass().getClassLoader(), "web");
configuration.setDefaultEncoding("UTF-8");
configuration.setTemplateExceptionHandler(TemplateExceptionHandler.RETHROW_HANDLER);
Template template = configuration.getTemplate("officeweb.ftl");
Template template = configuration.getTemplate("officeweb.ftl", locale);
StringWriter out = new StringWriter();
template.process(model, out);
return out.toString();