Question

任务：使用Groovy沙箱执行groovy脚本：

要执行的Groovy脚本：

query.reverse(); // QUERY is a some string that should be reversed

文件＆＃34; GroovyScriptSandbox.groovy＆＃34;应该获得两个参数（此脚本的脚本和值）：

package test.my.groovy.sandbox

import org.codehaus.groovy.control.CompilerConfiguration
import org.codehaus.groovy.control.customizers.ImportCustomizer
import org.codehaus.groovy.control.customizers.SecureASTCustomizer
import org.springframework.stereotype.Component


@Component
class GroovyScriptSandbox {

def config
def shell


    public String runScript(final String script, final String query) {
        final ImportCustomizer imports = new ImportCustomizer()
                                                .addStarImports('groovyx.net.http')
                                                .addStaticStars('groovyx.net.http.ContentType', 'groovyx.net.http.Method')
        config = new CompilerConfiguration()
        config.addCompilationCustomizers(imports)
        def newScript = "{ query -> " + script + "}"

        shell = new GroovyShell(config)
        def clos = shell.evaluate(newScript)
        return clos.call(query)
    }
}

执行＆＃34; GroovyScriptSandbox.groovy＆＃34;的Java方法：

@Resource
private GroovyScriptSandbox groovyScriptSandbox;

@RequestMapping(value = "/run", method = RequestMethod.POST)
@ResponseBody
public String runScript(@RequestParam("script") final String script, 
                       @RequestParam("query") final String query) {
    return groovyScriptSandbox.runScript(script, query);
}

在这种情况下一切正常：

Java控制器获取脚本参数等于＆＃34; query.reverse（）＆＃34;和查询参数等于＆＃34; 0123＆＃34;
Groovy文件执行脚本＆＃34; query.reverse（）＆＃34;在沙箱中查询等于＆＃34; 0123＆＃34;
结果等于＆＃34; 3210＆＃34;

问题： 我试图取代＆＃34; GroovyScriptSandbox.groovy＆＃34;文件包含＆＃34; GroovyScriptSandbox.java＆＃34;而且我不知道如何用Java编写相同的groovy代码。

Answer 1

终于找到了解决方案：

public String scriptRunner(final String script, final String query) {
    final ImportCustomizer imports = new ImportCustomizer();
    imports.addStaticStars("java.lang.Math");
    imports.addStarImports("groovyx.net.http");
    imports.addStaticStars("groovyx.net.http.ContentType", "groovyx.net.http.Method");

    final SecureASTCustomizer secure = new SecureASTCustomizer();
    secure.setClosuresAllowed(true);

    final CompilerConfiguration config = new CompilerConfiguration();
    config.addCompilationCustomizers(imports, secure); 

    final Binding intBinding = new Binding(); // alow parameters in the script
    intBinding.setVariable("query", query);

    final GroovyShell shell = new GroovyShell(intBinding, config); // create shall

    // code execution
    final Object clos = shell.evaluate(script);  

    if (clos == null) {
        return "No result avalible!";
    }
    return clos.toString();
}

Groovy沙箱和Java：执行Groovy脚本

1 个答案: